How do you get over someone you still want in your life?

I’ve had pretty strong feelings for my best friend for about a year. My dumb ass was gonna tell him on his birthday but then a couple days before his birthday he got a girlfriend 😓 I didn’t think it was gonna last very long because he has dated girls before and it’s just been flings but I guess he really likes her. I’ve decided I need to just move on. If he had been interested he would have made a move by now. I don’t wanna stop talking to him (as Wikipedia suggests when getting over someone) but need to move on. Any suggestions?