When did you know she was “the one”?

I’ve seen posts asking the same question, but the replies are always straight couples. I know we like to U-Haul and move fast, but when did you know it was real? I’ve only been dating my gf a short time, but I already feel like she’s it, I love her so much it makes me cry (happy tears). I just want to make sure I’m not crazy, and that if you got engaged less than a year in it can still work out!!!