What should I do about my current boyfriend?

My boyfriend and I have been together for almost nine months and up until a month ago we were perfect, no fighting, no stress, no problems and I expected to have a few fights here and there because no relationship is perfect but it seems like lately I feel like im unimportant to him in his life right now. he doesnt mention me on his a social site..it says he is single. he will go mad long without txting me because he is “busy” he has no job, he goes to school 9-3 just like me..only difference is I txt him no matter how busy I am, just to say hi. he isnt as sweet as he was in the beginning, ill say somethin wicked sweet to him and he will answer by saying somethig totally not romantic and I just dont get his sudden change, he still we say he loves me and he wants to be with me forever but im starting to doubt it for the first time in our whole relationship and he will randomly be wicked rude to me and tel me that im stupid and he will completely ignore me and make me cry. its so frustarting!