Am i falling out of love with my husband, Is it time to think about a divorce? Advice/Opinions?

My husband and i have been together 5yrs, married for 3 of those, I am 27 & he is 34. We were always the total opposite of each other & My friends and his friends don't get along well as they have nothing in common They always said my fiance was very intimidating & when i first met him i was intimidated by him also, at times when he looks at me he looks really intense & feels like he is looking through me. He spends alot of time with his friends and i never really had time alone with him so i now mostly hang with my friends, but we always had time for each other & we were very close to each other. Lately i've started to feel numb when i think of him & everything he does annoys the crap outta me, When ever he holds me close to him, tries to hold my hand or snuggle with me i pull away from him, i feel like i cant breathe. I use to always visit him at work and i couldn't be bothered to anymore. He has asked me whats bugging me & always told me that he never wants to lose me but i never open up to him. Sometimes when i look at him i don't feel attracted to him anymore & its killing me inside, I love him so much but i don't know if im IN love with me anymore. I prefer to be by myself than with him & i turn on him alot more, Which he can be quick tempered so i know how to push his ons & he end up arguing. I cry at lot on my own, I feel lost & I'm finding it hard to sleep at night & when he comes into the room i pretend to be asleep, I know im not depressed as i asked my doctor, I feel really confused and im scared as i don't know why i feel like this. Any advice?