Thoughts

So i just moved for school and i haven’t seen my bestie in over a year ( we live states apart) but he said he’s coming to visit me soon. The problem here is I’m in love with him and i know he has feelings for me but we aren’t acting on it because we’re so far. Also he now has a gf they’re like 6 months deep. The issue is when he visits I’m afraid something might happen between us. This is a problem because he has a gf and he would be my first and i don’t have time for any of those headaches because i respect him too much for him to lean into his feelings for me over his gf. how can i make sure we don’t accidentally mess around or admit feelings I’m thinking I’ll have him sleep on my couch any advice?