Lack of Attention..?

So my boyfriend and I have been together for a year, but I feel as if he has gotten too comfortable and isn't trying to win me over anymore since I am his girlfriend. I have always been better friends with men because I grew up with a bunch of brothers. All of my guy friends seem to care more and give me more attention than my own guy. I don't know what to do but I keep crying when I am alone because I feel likeI am not a priority because he seems to ignore my feelings.