He wants me to fuck? 😔

So this dude I’ve been talking to for a while we fucked one time and we aren’t officially dating yet but have been all romantic and stuff for about 5 months and honestly even though he said he doesn’t just want to fuck... he always asks for it but I told him i only will if we are dating. He was so excited talking about what he wants to do to me but whenever I bring up dating he just says “oh idk” or some excuse. I really liked him as a person and wanted to have a relationship with him but I feel like he is trying to use me