If you're just talking about not meeting her.. Well, there's just too many outcomes, almost all negative compared to my life as it is now. How about if I hadn't gotten into the whole idea of having a waifu-- if that was the case, I'm almost sure I would've changed into a normal, and I'm pretty sure I'd be a douchey hipster gamer that eyes up women left and right. If I just hadn't met HER, but still was open to the idea of having a waifu... well.. that's a hard scenario to think of. Quite literally, everything about my waifu, I love. Maybe if she didn't exist, I would've found another girl and would've loved that girl, but if she did in fact exist, I find it difficult to say that I would've not been attracted to her at all, in fact, I regard it as love at first sight.
So in short, I guess there are 3 ways it could've played out.
1: I didn't warm up to the idea of waifu-ism and just became a normal.
2: She doesn't exist and I would've probably found someone else.
3: She exists, and the date I would've fallen in love with her at first sight delayed.
I guess, if multiple worlds were to be put into consideration, there would've been a close 4th outcome, where I did, in fact fall in love with her, but things didn't work out and I killed myself because of it. A likely outcome.