Sorry to hear this happens to you. We can’t change others behavior but you have to own your part of this situation as well and learn from it.

Sorry to hear this happens to you. We can’t change others behavior but you have to own your part of this situation as well and learn from it.

1. Your coworkers are not your friends. Please remember that. It’s not harsh or unreasonable. You need to set professional boundaries.
2. Have a sit down 1:1 with your boss. Ask her to set clear expectations of your work and document your achievements and goals.
3. Be professional and a grown up even if other people don’t. Investigate if there are crucial meetings that you are missing out.
4. Try to establish relationships with one person in that group at a time. You don’t have to hang out with them all at once. Don’t be too needy, just slowly show interest in building back the relationship.
5. Given these people’s immaturity behaviors at the workplace, I strongly suggest to look for a new job and move on. You need to start fresh and establish boundaries.
6. Find new friends that are NOT your coworkers. There are genuine nice people out there. No need to dwell on mean girls. They were never there for you in the first place.