Is it normal to wait for attraction to grow and to feel ready for change

Ive been seeing the same guy for 4 months and I am waiting to get attracted to him. My type in men is awful. I only like men who are my opposite and have nothing in common with me. I tend to hate anyone who reminds me of myself. Only problem with that is I have many hangups that makes it hard for someone not similar to myself to tolerate me.
I have aspergers, OCD tendencies, social anxiety and depression. I am not into sex because of my OCD tendencies and depression.
I have no problem dating but it usually doesnt take long until I get the "you're cute, but we're too different, sorry"... Or they try to change me in not in a very nice way.

I was thinking I need to change what i'm attracted to before I get even older... I am 26 now.
So i've met the guy i'm with now. He has aspergers too. He's nerdy, sweet, romantic. He's a great communicator. He isn't very interested in sex. In short we are very compatible. It's not easy for someone like me to find a compatible partner. Sometimes I think he feels like a threat to my space because it's very scary to think about agreeing to be his girlfriend and getting dragged into his family and meeting his friends and vice versa... I keep my private life private. I've never introduced a man to my family, my friends don't know about each other. It's worked without issue with the type of men i've dated in the past to keep family and friends out of it, they didnt care and probably weren't faithful (though I like to kid myself that my ex was)... but this is a guy who wants commitment seriously, knowing each others family and friends... He already has told his family about us, but like the respectful man he is he doesn't rush me to meet them or agree to a label. Is it possible to change what you are attracted to and to get comfortable with so much change ???

He may be patient but hes not gonna be patient with my indecisiveness forever. I dont want to let him go, but I feel no crazy attraction or passion just comfort and like he's really someone I can imagine my life with even though he really annoys me at times, but most people do !