I liked him first

So I have this problem... I have like this guy since before we started freshman year of college when I saw him at admitted students day. We followed each other on Insta and I religiously Insta stalked him during the summer lol. All my friends knew who he was and then I found out he got a gf. I was sad af but what could I do? So I kind of moved on and lived my first semester of college to the fullest. I still thought and talked about him often with my college friends but I never thought id get a chance with him. My college friend told me a few days ago she started liking him bc they are in a play together. I was ofc mad and but was like whatever hes got a gf anyway. She told me they broke up and I couldn't have been happier. I had been on Tinder that night and I swiped right on him without even realizing it was him. He messaged me and things kind of took off from there. We have so much in common and last night we spent five hours just talking to each other and getting to know each other. I'm not sure if I should keep pursuing him or not. I need to tell my friend we talk but idk how. I really need help because I really like this guy but I also dont want to lose a friend.