so so confused.. boyfriend has autism?!

I've been with my partner for a little over a year, and have never been suspicious about his behvaiour. I'm quite well aware of behaviour traits associated with autism/aspergers and none of these really apply to my boyfriend. he has a temper on him but never towards me and he controls it.

however his mum has now told me that he has autism and although I love him I just feel really weird about it. does that mean he doesn't see the world the way I do? is he not as capable of loving me as I am him?

it sounds so naive and silly but for some reason it's really upset me.. is that normal?! i  guess the fact that he didn't tell me himself doesn't really help as I don't want to mention it to him and put him on the spot - he obviously hasn't told me for a reason.

any advice would be so helpful