How Do I Know I Am The Only One For Him?

You know that you are the only one for him when his world suddenly revolves around you and you feel like you are truely loved. When he gives up time with his guy friends just to be with or talk to you. When he wants to be with you all the time. When he basically makes you his number one priority, that's when you know that you are the one for him.

I have been dating this guy for two months.He is a nice person and has a good heart but we don't spent much time together.It seems he is avoiding attachment and often tells me how abusive was his ex girlfriend.He broke up with her three months ago and it looks like he has not healed.He says he loves me he is afraid of going through the same thing and he is trying to get around the fact that I am not the same person as his ex girlfriend.How do I deal with this?