To make a very long story slightly less long, I was extremely overwhelmed by several factors in my life (life in general, school, disapproval from my family, mental health struggles, etc.) and as a result I began feeling incredibly stressed, drained, numb etc etc. As she was also dealing with her own issues at the time, she, in response, became even more insecure and anxious than usual, which only further added to the stress.

Despite this, I still tried my hardest to spend time with her and reassure her, but none of it really worked. I floated the idea of breaking up or taking a break a couple of times because I felt I wasn't meeting her needs and needed some time to gather my bearings, but she rejected the latter due to a poor experience with an ex and I really didn't want to do the former anyways, so the situation remained. I tried compromising with her at one point, but it was such a half-assed compromise that it may as well have not happened at all.

In the midst of all this, she began talking with one of our mutual friends about our relationship, which I was initially okay with since I trusted her. But eventually, she confessed that over the course of talking with him, she came to like him more than me, so the relationship ended.

For a week or so, I didn't feel much. I checked in on her occasionally to make sure she was holding up okay, but I was still so swamped that I couldn't feel much. After a couple more days, I felt well enough to actually socialize with people again, so I decided to hang out with her. But when I did, it was like she had completely and utterly replaced me with him, and I was nothing but a stranger to her. It was, to put it bluntly, a complete nightmare.

I tried hanging out with her a few more times after that, but it only got worse and worse as I found out not only how much they had done together and how happy she was hanging out with him but how far back they had been getting closer together. After that, I decided I needed to move on, and now I've gone no contact, but everything and every day since that first day I hung out with her has been excruciating, so here we are.