I'm stuck between 2 guys and I really need advice❤️❤️

So I went on a music camp in may and met this guy called Louis he is a year 12 I'm in year 11 and at the time I was with my boyfriend who I've been with for a year and a half now. I started to become really close with Louis and eventually developed feelings for him and it seemed he felt the same way and when we got back to school he wasn't as friendly as he was at the camp and I'm guessing it's because of my boyfriend and we recently had another music camp and got really close again and a jealousy incident happened where Louis saw me ask this guy to play table tennis with me and he followed me and the guy to the game room came in and said let's go then started playing and slammed the ball to the other side of the room and then threw about 4 rackets on the floor said fuck this and left then 2min after asked me why I was with that guy. Since then we've been like close and he took me out for a night walk like we did at the other camp and he was really nervous and last night there was this concert at a bar and we got super close at that again and I really like Louis but I don't know what to do because I have a boyfriend. If you guys want more info I can give more but that was a very not detailed summary please help me figure out what to do❤️