I think you're absolutely RIGHT!
If this person is triggering you out of vindictiveness, then they have no business being anywhere close to you...

Is there no way you can extract yourself from the mix? Must you put up with this person's presence and actions?

I really feel for you suga

I hope this mood disappears as quickly as it reared it's ugly head, and pray that "this person" get's lost SOON...

You are in my thoughts and prayers dear friend...sending lots of bear hugs your way