I was in a relationship with a neurotypical girl for 4 months. She is very demanding by nature, can't sit still, but is honestly the best friend I've ever had. She's a great person, excellent mother (no kids with me), and I'd be lost without her. We are still very good friends. She didn't want to continue with a relationship because I was not romantic enough and kind of boring, which is true. I honestly tried, but it really was exhausting. We had some great moments together, and I still love her to death.
Before that I was with one other girl, but she was kind of odd (I suppose I have a neurotypical view of people) and we tried to have a relationship about 3 times. She didn't want to get serious, she was difficult to deal with, and said I was boring. I knew there was something odd about her, but looking back I couldn't tell if she was on the spectrum or not, I doubt she was. She was very spontaneous, which she complained that I wasn't, and that I was boring. She was extremely goofy, didn't take criticism well but said she never cared what other people thought. Was hard to figure her out.
Before that I had a small fling with a girl when I was in college. But all through my life, because of my anxiety, I always had an awkward approach to girls and have made a fool out of myself many times because I never had the guts to talk to them or held a conversation with them. As a result of that, most of them thought I was a freak or a weirdo. As I've gotten older, it's a little easier for me to flirt and be friendly with girls who I have an interest in, but it's still very difficult, and they have to at least initiate something, because it's hard for me to do that.