Warning: This article contains spoilers from the season finale of “Married at First Sight.”

On the third season of “Married at First Sight,” no couple has struggled more to connect than Ashley Doherty and David Norton, and Tuesday night’s season finale (part 1) confirmed the writing that has been on the wall for some time — they’re getting divorced.

David, an eternal optimist throughout their six-week marriage experiment, expressed his desire to test their relationship after the cameras stopped rolling. But Ashley, who never developed an attraction to her husband, was done, telling David and the show’s experts she wanted a divorce.

“I don’t have the same feelings,” she told the camera afterward. “I wish I did, but I don’t.”

Now, six months since the finale was filmed, David talks to The Post about what was to blame for their failed marriage, the moments the cameras didn’t catch — including a kiss — and whether he and Ashley still speak today. (This interview has been edited for length.)

What do you think was the main hurdle you and Ashley couldn’t move past?

I think our main hurdle was very simple: Ashley was not attracted to me, and to her that was a really big deal. I tried to be patient and show her that there is more to a partner than looks, but for some reason, she couldn’t get past it.

In the finale, she blames it on a breakdown of trust after the messaging-her-friend incident — do you agree with that reasoning?

Well, it surely wasn’t an easy time in our marriage, and looking back on it, it’s something I shouldn’t have done. But to be totally honest? No, I don’t think that was the only reason . . . she also said that there were four or five different things on why it wouldn’t work. But she couldn’t name those things. It was at that moment I realized that the marriage would never work.

Maybe we could have gotten past my message mess-up or the fact I wasn’t physically her type, but we really didn’t try. The experts gave us so many homework assignments and we just couldn’t get them done . . . I believe she was looking for an out even before the message.

Did you know before you sat down with the experts that Ashley was going to ask for a divorce?

I had a good feeling Ashley was leaning in that direction just based on the previous six weeks of her inability to open up and get past the fact that I wasn’t her typical guy. I was not surprised by her decision.

But at the same time, I was going to be true to myself and true to my commitment. I was not ignorant to the fact that we were not in a good place . . . I find it very difficult to believe that if you signed up to be arranged for marriage, and wanted marriage as your No. 1 priority, then you cannot make a decision like this within six weeks — you just can’t. The [reality-TV] documentation is such a weird dynamic in the marriage that you owe it to yourself and to the other person to try at least for a little bit without the cameras. Even if it’s just a day, that’s why I made the decision to stay together. I wanted to keep going.

Did you say anything else to each other after telling the experts your decision?

To Ashley, no. What you see when I am leaving the house is exactly how I was feeling. As soon as she said divorce, it was very clear to me that I was trying to do whatever it took for nothing. That I was chasing someone who didn’t want to get caught.

She wanted to talk to me, but I didn’t see the point. We had six weeks to talk. I just wanted to get out of the house as quickly as possible and I realized that for the past six weeks, we were doing what Ashley wanted to do, at Ashley’s pace and what Ashley wanted to talk about. For the first time since we were married, I was going to do what I wanted to do, and that was to leave at the moment.

Since you and Ashley never consummated the marriage, can you get an annulment, or will you be filing for divorce?

We knew going into this that if the marriage didn’t work, it would result in divorce. There will be no annulment.

Were there good times, affectionate times between you two that we didn’t see on camera?

What you saw was what it was. We did have some good moments. The day after the wedding, we were both so exhausted, and both were not used to the cameras being around 24/7. So we grabbed lunch to go, ran up to our hotel room and hid in the bathroom. We had this huge empty Jacuzzi tub that we just sat in and ate our lunch. We were eventually discovered, and Dr. Logan was Skyped in. It was a really cool moment and one I thought was going to carry us.

The day of the wedding when everyone was getting ready for our exit, we stayed back and slow-danced in a totally empty reception hall. It was just Ashley, myself and the DJ. One other fun moment was the night we went on the Ferris wheel. We interviewed each other like we were a producer on the show on how the night went . . . I do feel like Ashley would catch herself actually having fun, laughing and maybe letting me in, but then quickly remind herself not to.

Did you and Ashley ever kiss on the lips?

We did kiss once before bed. We were snuggled up in bed and we just kissed. It was our first and only kiss.

Did you keep in touch with her after the experiment ended?

A week after the experiment ended, we chatted briefly and decided to be friends. But then, shortly after that, she said she would rather not talk to each other. So we didn’t talk up until the show premiered. When we did, we discussed that we wanted to make this a very amicable divorce and go out with our heads held high. We both think the other is a great person, just not for each other.

Once the show aired and social media became a factor in our relationship, things changed. She had so much negativity going her way, I really felt bad. I would try to stand up for her, but that seemed to make it worse, so I focused on being positive. I think that she is a good person at her core, and one day she will make someone very happy.

Do you want to get married again?

Yes, I do. I think marriage is an awesome thing and I am fully confident that the future Mrs. Norton is still out there.

I learned a lot about myself through this experiment. I said it at the end of the show — when I first started, I thought this was the story of how I meet my wife. But in reality, this is just a chapter in the book.

Has this experience changed the qualities you will look for in a potential mate?

Something that I learned from the show is that it’s OK to be a little bit selfish and it’s OK to articulate what you need out of a partner, and that person is either going to accept that or it will be time to move on.

I am not dating anyone at the moment. I am still looking for someone who likes to have fun, who is sociable and puts a strong emphasis on the importance of friends and family, and not only wants to meet mine, but wants me to integrate with theirs.

In retrospect, how do you feel about participating in the experiment?

Loved it. I know it didn’t work out and I may have some “I told you so’s” coming my way. But I would rather have a bunch of “Oh, well’s” in life than a bunch of “What if’s.” I learned so much about myself and how to be a better spouse once I find the right person. It didn’t work out, and that stinks. But I am confident that everything in life happens for a reason, and there is a reason why I was married at first sight to Ashley. I truly believe that this road is taking me to where I need to be.