Best friend is still obsessed with her ex fling while dating new boyfriend who adores her

Hi friends! Happy new year! I promised myself that I would have more intentional conversations this year and I really want to have one with my best friend. We’re both 24 and she had a fling with this guy she worked with (at a chain restaurant) for about 2 years. During their.. situation-ship, he refused to commit and was constantly manipulating her, thus leading her to become this insecure person that I don’t even recognize

He got into two serious relationships while they were hooking up, and she cheated with him on his gfs. She was sleeping with him when she also got into a relationship and only dated the new guy to make her situation jealous. I did not like that and I wanted to tell her new man so bad and we had a deep talk about it and she finally told him she cheated.

Now, she’s dating this new guy who is super sweet and he absolutely adores her. But she is obsessed with her ex situation. Constantly watching his social media stories and posts, talking about him, crying over him. And her new boyfriend I guess knows about it and says it’s just trauma and she needs help getting over him.

I’m just super frustrated because I told her that I think she’s dating her new boyfriend to get over the situation and she shook her head and said no. But she’s constantly talking about him how he’s teasing her at work, she hopes her new boyfriend makes him jealous, she’s constantly keeping tabs on him and she said she only reacts like this because he’s still in her life. I told her to block him on everything and just stop talking to him at work and she said she can’t because she still loves him.

Back in October, I was hanging out with some friends that we went to high school with and one of the girls was actually dating her situationship. I told her he’s bad news and told my friend he was dating our friend. My friend flipped out, completely spiraled and became OBSESSED with needed to know every detail. The girls ran into each other at target and my friend said that she’s super ugly, fat, she’s so much better than her, all This nasty stuff!!

I’m getting really sick of it because I don’t think it’s fair to me that I’m constantly put in between her being toxic to the men in her life. She’s constantly using a new man to get over her ex and when I told her she needs to learn to be alone and move on peacefully and work on herself, she flipped out on me and said that it’s not her fault that she cheated

I really want better for this year to not get caught up in between her web of lies and drama! Any advice on dealing with male centered friends ??