Someone help-I don’t know if my best friend is gay

I think my best friend is gay and likes me. This all happens when I stayed at his for 2 nights in a row. On the first night I got in to bed amd he said he would go to bed in a bit (usually we share a double bed, and both sleep in our underwear) anyway I was lying there with my eyes closed and he came and got In to bed, about 20 mins getting in to bed I felt his erect dick pushing in to my side and his thigh on my dick, I didn’t want to make things awkward as I had to stay the next night, I slowly turned over and he moved, this then happened two more times that night.The same happend on the second night, I moved away and was woken up by him spooning me, i would move the other side of the bed and the same would still happen. The morning after he went for a shower and I did as well. To save time I just picked my whole bag up and went for my shower, i then realised that I also accidentally picked up his under wear from the night before. I just kicked them to the side but then I noticed there was dried cum in his underwear.I really don’t know what to do we have been best friends for ages and we both have girlfriends.