Anonymous wrote:OP here. I know I have to get over how I feel! I just don't know how to think differently about both of them. I think the problem is that if they both invited me, it is not an issue but my SIL or my friend never bothered to, never cared about how it would make me feel. I want to see them differently so that I don't have my guard up all the tiem when i am around them. I know ppl are going to be brutal here.
That's the nut of the problem and really the key to any pattern you're going to find.
As far as them "never caring about how it would make you feel", it may come as a shock but not everybody is going to prioritize
your feelings when making their own plans and living their life. Seriously. You're making everything about you.
That being said- I don't know your SIL and I don't know your friends. I'm not going to pretend that people don't get possessive and push people out of relationships. But based on what you've posted, I think you need to do some self-work. There may be a reason why people don't hang out with you as much anymore.