Boyfriend’s ex gf is still not over him

They dated for almost 6 years, I know it’s not easy to forget and move on. She added me on Facebook, so I see her posts and they’re all indirect mentions to my boyfriend. They broke up 2 years ago and he dated another girl before me.

I don’t know what I’m feeling rn. I am not feeling insecure anymore because I’m dating him for a year now and he gives me a lot reassurance.

I feel like I’d want her to reach out to my boyfriend for closure so maybe it can help her move on, but thinking about it really happening breaks my heart.

I know that past is past, but clearly it isn’t for her. I don’t know but somehow it pains me to know that someone is hurting because I am with him.

Please knock some sense into me lol