Is this going to crash on my face? (26F) & (23M)

So I’ve been in a love triangle recently. And here how it goes. There’s a guy (23M) who has a crush on me for a while now me (26F). I was interested a little bit at first but then I thought this isn’t going anywhere due to his young age. So I retrieved.. what happened next is that same guy was also crushing on other girl who’s maybe around (21F) didn’t think too much about it because I wasn’t invested anyway so good luck to them. But the same guy was teasing me using that other girl to make me jealous. that made me sooo mad at him so me acting like Robin Hood I decided to punish him for that. Not only for me because that did hurt me because I did have feelings for him.. but that was humiliating for that girl who’s a friend of mine also.. so I got sooo cold towards him to the point of resentment. And he just kept going with his bs getting closer to that girl and checking me for my reaction..

What also made me sick was that the girl wasn’t really oblivious of the situation, instead she decided to resent me out of jealousy and treated him as if he done nothing wrong!!!!!!!

I don’t really know what will my next move is, kinda wanna take advantage of the situation and act toxic just for fun😂

I don’t give a 💩 about his feelings, although I HATE seeing girl get hurt so that may hold me back a little.

So yeah I don’t think I really need advice here but I would like to hear other opinions