How to make my feelings known

So during this week, me and my friends went out with a group of boys to movies. It was 4 boys and 4 girls. All three of my friends were together with the other 3 boys. Leaving me with the remaining boy. During the night they all separated to like “do stuff” with the other and they were pressuring me to do stuff with this guy. Here’s the problem: I’ve never talked to this boy in my life. My friends were close with the others and each had mutual feelings. I just got here and me and him were strangers. My friend said he wanted to do stuff with me but I didn’t know him. So of course I said...no.

So me and him talk and stuff while we wait for everyone to be done. Fast forward to the movie, I sit next to him cause every couple is cuddled up and I feel like a loner. Me and him talk through the entire movie and end up catching feelings because he’s funny and interesting and is exactly MY TYPE. I try to hint that I’m interested by leaning on him but he doesn’t catch the hint. My friend says because I rejected him that one time, he doesn’t think I want him no more.

I know it’s my fault and can’t change the past but how I do I make my feelings known? I’ll be seeing him again at this party I’m going too and anything I can do to get him to understand?