The complete (and messy) timeline of Tana Mongeau and Billie Eilish's friendship

Let us begin. Getty

November 24, 2018: The moment Tana fangirled hard and Billie was highly uncomfortable

In November last year, Tana Mongeau met Billie Eilish for the first time after the "Bad Guy" singer invited Tana to her concert in Los Angeles.

Yep, it was Billie that extended the first invite - bet Billie regrets that moment.

Anywho, Tana posted a truly incredible picture of the night which shows the over-enthusiastic vlogger hugging an awkward AF Billie.

Honestly, that is the biggest 'get the f*ck off me' look we've ever seen.

We could stare at this photo for hours it brings us that much joy.

May 28, 2019: When Tana paid homage to Billie's style and the singer responded with a truly epic clapback

Billie, that you? Youtube

Continuing her obsession with Billie, Tana decided to dress like her friend for an entire week, even dedicating an ENTIRE YouTube video to the charade.

At the time, fans of the "Ocean Eyes" singer called her out hard for copying Billie's signature style.

Turns out, Billie herself wasn't too happy with the gimmick as she privately DM'd Tana saying bluntly, "stop copying me".

The second-hand embarrassment here is real.

July 1, 2019: Billie’s now infamous response to Tana’s engagement news

The moment Jake Paul proposed to fellow YouTuber Tana, the world was both shocked and a little sceptical.

Upon seeing Tana and Jake’s engagement photo on Instagram, straight savage Billie said what we were all thinking by writing: “eek” and “yikes”.

Arghhh - we love it so much.

Later in July: When Billie hilariously shut down Tana’s wedding invite

TBH, we’re feeling a little sorry for Tana at this point.

When Tana asked her BFF (again, one-sided) if she would attend her nuptials in Las Vegas, Billie made her feelings very clear.

We can't look away. Youtube

September 4, 2019: 'The unfollowing'

What a day it was when Billie Eilish unfollowed her foe on Instagram.

Being the vlogger that she is, Tana had to record her emotional reaction to the unfollowing which she posted to her YouTube channel.

"Billie Eilish unfollowed me," Tana says to her manager Jordan in the wonderfully dramatic video.

"This is absolutely the most detrimental thing I've ever filmed myself telling you. I'm actually sad. I found this out yesterday and I went through hard shock... but I have to make this video. I have to get views out of it because nothing else good could happen from this.”

That’s it for now friends, we think Billie might now be done with all things Tana.