Markus "Notch" Persson has opened up about his emotional state following his decision to sell Minecraft to Microsoft to the tune of $2.5 billion. In short, he's not having the best time.

In a series of tweets on Saturday, the billionaire Persson--who outbid Jay-Z and Beyonce for a $70 million Beverly Hills mansion and partied with Selena Gomez--said he's feeling lonely. He also says he's wary to use his wealth to do what Elon Musk has done and branch out into new industries.

In the flurry of tweets, Persson also laments how the team that remains at Mojang aren't fans of his. "When we sold the company, the biggest effort went into making sure the employees got taken care of," he said. "And they all hate me now."

Persson--a self-described introvert--capped off his thoughts by thanking people for their messages of support, and said he's optimistic that his outlook will improve.

For more, check out CNET's editorial: "Billionaire who sold Minecraft to Microsoft is sad and lonely."

Previously, Persson said he kind of felt like a "sellout" for selling Minecraft to Microsoft. Persson reportedly had a 70 percent stake in Mojang, meaning he made around $1.75 billion from the sale.

The problem with getting everything is you run out of reasons to keep trying, and human interaction becomes impossible due to imbalance. — Markus Persson (@notch) August 29, 2015

Hanging out in ibiza with a bunch of friends and partying with famous people, able to do whatever I want, and I've never felt more isolated. — Markus Persson (@notch) August 29, 2015

In sweden, I will sit around and wait for my friends with jobs and families to have time to do shit, watching my reflection in the monitor. — Markus Persson (@notch) August 29, 2015

When we sold the company, the biggest effort went into making sure the employees got taken care of, and they all hate me now. — Markus Persson (@notch) August 29, 2015

Found a great girl, but she's afraid of me and my life style and went with a normal person instead. — Markus Persson (@notch) August 29, 2015

I would Musk and try to save the world, but that just exposes me to the same type of assholes that made me sell minecraft again. — Markus Persson (@notch) August 29, 2015

People who made sudden success are telling me this is normal and will pass. That's good to know! I guess I'll take a shower then! — Markus Persson (@notch) August 29, 2015

I really appreciate all the offers to hang and talk and all. As an introvert, new friends is hard to do even when fine, but it means a lot! — Markus Persson (@notch) August 29, 2015