Stupid boys

Hey fam so I started talking to this guy about a month and a half ago and im so so crazy about him. Im 19 and hes 18. Its his first semester at college and im pretty sure at the beginning of semester is when him and his girlfriend broke up. It was his first girlfriend and they dated for a year and a half. When i said i liked him and asked what he was looking for in a relationship right now. He said nothing serious (this was about a month ago). But i feel like things have changed. I sleep over at his place alot, and we hang out casually. We only ever had sex once. We take baths together and shower together. He went as my date to semiformal. And hes met alot of my friends. Idk half of me feels like we are leading into a relationship, but other times i think im just the filler girl for his ex. But idk. What do you guys think?