This isn't fair.
No, I actually get what you mean. I was perfect on paper with someone from last fall (and earlier this year, for version 2.0) and despite things being 98% there... I don't know, have you ever seen Sliders? It was exactly like that. (Not entirely important, though.) But I always felt like something was missing, like something was off, and while others identified it as a small piece, it started to feel more and more outsized as time progressed. I could see things progressing along a certain glide path, and I knew I'd be unhappy at the end.
I think we both went through the same thing. I tried, but things didn't ever perfectly click.
I also felt like I would've settled.
So, if we're in the wrong here, we're on the same team.
The weird thing is, with my current almost-girl, I know she's not perfect and I do have doubts, but I'm absolutely willing to press on; I'm legitimately excited to know her further, and I have no problem introducing her to friends or making medium-term plans with her. If you put a gun to my head and asked me if I thought it'd work out, I'd give you a solid 50/50, but I'm... excited to try.