I love him but im not in love anymore.

I hope no one judges me on this :/ I've been so confused on how I feel with my boyfriend of 2 years. Things have been going down hill... We started fighting every day and now we just give up on fighting. I'm not even sure how I feel about him anymore... Not enough to say I'm deeply in love anymore. He's stopped being sweet to me or trying to make me smile. I've told him and he gets butt hurt. He changes for like 2 days and he goes back to normal. I don't even feel like I'm in love anymore. I think the only reason I havnt left him is because I havnt been single for a long time. I have no idea if these feelings will go away or what