You''re teenagers and you like playing mind games with each other.
It's part of being a teenager. Drinking etc doesn't help with behaving in a smart way with someone you say you love.
You're going to end up hurting each other and by the looks of it you're both willing to hurt other people emotionally as well.
Dial back on the game playing a bit.
If you want this to be a relationship that lasts, you're both going to have to treat each other (and other people) and the relationship with respect. It's how grown-ups make relationships last. They respect themselves, their partners and the relationship.
Don't let anyone kid you - relationships are work. They don't just happen. Not a lot of them survive emotional game playing.