First of all I'm really sorry for you. Keep on with therapy, this and time will get you much much better. A physical activity is also something that can be very helpful.

I don't think that was really a FU from your side to introduce them, they are both liars and manipulative person's, you're better off without them. The FU is more about how you let people abuse you.

I will tell you something you probably heard in therapy: you are your number one priority. Learn to say no even to people you love, instead of trying to be "nice" and afraid to hurt them. Stop doing things too much for others, especially a SO. What happens is that you do that things for people to like you, but what you do is you make them need you. You don't want that, you want people to be with you because they want not because they need. Yes it's scary because if they don't need you, it means they can leave whenever they want. And that's probably another, very classic, issue here: fear of abandonment. You are so afraid of that, that your accept and much much more than you should.

But you're doing great OP, as long as you're making progress, it's all that matters. Writing this story here is a big progress, and I'm sure it wasn't easy. Your life is just starting, things will get better and eventually you'll love yourself. Keep going 💪