Hey i know this is dumb but i need to get these feelings out.

My boyfriend is away visiting his sister in florida and he has been gone for 15 days and we talked at lot at first but now he seems like he simply doesnt care at all and i just miss him and i dont think he misses me i think he might have cheated on me even because he is really not acting like himself and i really love him even though we haven't been together for a long time he is the only man I've felt this for ever so i just had to get my feelings out and hope he calls me because he said he was going to call 4 hours ago and the time zone is different so im waiting still in the middle of the night