>>/6783/
> I'd say the main thing propping me up is my waifu. I used to be with Twilight Sparkle, but about 3 years ago I felt like I had hurt her quite gravely, and that sort of spiralled into a lot of soul-searching and then a breakup of sorts.it made me feel too guilty to be around her anymore
how does one hurt a character from the real word to fiction? Not to question your emotions but I would have to know about a few details in order to understand this. 
Either way, while I haven´t had a waifu nor I have gone through any similar experience, I understand that there are some ups and downs. I imagine that said breakup would come up because of feeling worthless in comparison with her. Although that defines a lot more the one who feels guilty than the character so a certain event/context of yours must have happened at the time beyond that twist.

Fortunately enough, I have heard more extreme cases than yours and had to rely on the same pathway of finding another one to hold onto. So, yeah...

> a year later I found myself falling in love with a non-MLP character. That's off topic though, so I won't talk too much about my current waifu, I promise.
no need to talk about that if you don´t want to.

> But she's pretty much my support now.
well, that love hasn´t disappeared after all. Nice to hear that.