How to put the spark back into my relationship

Hello everyone I’m writing because I really need advice. Also it’s a pretty long post, I apologize in advance!

My boyfriend is my best friend and I don’t have any girlfriends so here I am. So the first couple of months were great we were in out honey moon stages but now it’s completely different. We still have awesome/fantastic sex as much as we can but everything else seems to lack now. We barely go on dates anymore and I’m a home body so I know I need to make more of an effort for date night but he doesn’t kiss me as much as he did, tells me he loves me as much, we’re just not as affectionate as we were and we’re not talking as much as we use too either.

My boyfriend hates the holidays because of his experiences as a child and when the holidays came around it seemed like that’s when our relationship started to change. He started to become quite more, he barley talked, it was like he just shut down. And now I’m at a place where I think it’s me so now I don’t feel pretty and I feel like everything I do to make it better is actually making it worse. I need help ladies. I have to put the intimacy and conversation back into my relationship he’s an awesome guy and they say when you know you just know and he and I both would like to marry each other and we were friends for 2 years before dating. He’s also the first guy I care enough about to even try to fix our relationship.

Any suggestions on what I should do ladies and sexual wise we’re fine. We are very attracted to each other that way and have mind blowing sex and we try different things often so it’s not the sex. Any ideas on how to get him to open back up again like he was at the beginning?