You are grieving. You have a therapy appointment tomorrow. That's healthy self care.
i fear that i value this relationship so much that i will stay and suffer for a long time before i cant take it anymore.
You could bring that up in therapy. Like why do you value the relationship higher than your own well being? Why do you choose to go WELL PAST your limit of tolerance before you stop participating? Rather than "nip in bud" when it's at the "approaching my limit" place? Or "stop now" when it is "AT my limit." Why does it have to go "Far beyond my limit" before you finally do your self care and remove yourself from a damaging situation?
she obviously isn't happy, and i never knew because she never told me. i feel like she is trying to push me away.
Some people do that. They are not happy, they want things to end, but don't want to be the breaker-upper so they act out and stuff to get the partner to do it. It's not especially kind or direct.
If this is what you have on yours hands rather than a "slow drain" thing I'd "rip the bandaid" off and get it done. Because if I have to linger, I prefer to linger in the "healing space." Not in the "grieving breaking up space" dragging my pain out.
Hopefully your therapy appointment will give you more concrete tools to use when you have this upcoming conversation.
Remember that you can write a letter or email if you don't trust yourself to stick to the point if you do it verbally like face to face or by phone. Sometimes written is better than verbal. When we are feeling emotional, trying to be verbal and NOT lose your place in the conversation or break down can be challenging.
Plus if you go written, you can run it by the therapist before giving it to her to make sure no "vengeance" stuff is leaking into it.
It's ok to feel upset and feel angry. But seeking vengeance isn't healthy sounding.
Galagirl