MAJOR HELP I NEED ADVICE

So there is this guy that I have been with for about a month. At first I really liked him and now that we are comfortable enough with eachother I feel like I might not like him as much. Recently I feel like I keep developing crushes on different guys. They are just my friends though so idk. But I have such a huge problem bc I don't want to waste his time but I don't want to hurt his feeling and have it be awkward. I realized that as soon as we started hanging out more my feelings started to go away.. we call eachother babe and now whenever he calls me it I feel like I have to force myself to say it. I need advice tell me what should I do ?