I don’t know where I stand .. Advice?

I met this guy at my school and he’s a tad bit older than me. he’s 25 and i’m 19. A lot of people might say that’s a bit of a gap but I don’t think so. He has a daughter but that never stopped me from approaching him. Anyways we got close and one day we hung out and hooked up. we’ve only hooked up twice but he’s not really much of a talker meaning I barely hear from him especially now that schools over and we don’t see each other as often as we used to. A few weeks back he asked to watch a movie and i agreed and I thought it was a really lovely night due to the fact that nothing sexual happened this time and it was just him and I appreciating each other’s company. After that night I messaged him to say I had a nice time but he never replied but it didn’t shock me because I knew that’s how he is. I haven’t heard from him since but he did say happy birthday to me. I’m sort of in a weird place because I don’t know if he just wants to hook up with me only or if there’s something else. I don’t want to ask him because I know he busy with hi daughter but I guess what i’m asking is if i should keep waiting or move on?