I know that I'm toxic

He’s your ex you have no control or right over what he does or who he sees but you have a right to how it makes you feel and what you choose to do about it. He’s already cheated before and he’s hanging out with another girl. Maybe you should try to either shift your focus on something you love to do or try to meet other people as well. You don’t have to go and force yourself into a serious relationship but find someone who at least interests you enough to want to pursue that later on. Also alcohol is only a temporary fix to problems I recommend finding healthier ways to cope like talking to someone or working on something.

@SteinsGate1 Uhm, he's your EX. He is an EX for a reason. You should not be focusing on him anymore and whatever he is doing with his life. You need to focus on yourself. He isn't worth hanging over since he cheated on your before.

If he's your ex then who he hangs out with shouldn't be of concern to you. You can see whoever you want as can he as you two no longer have a commitment to one another