((Krazibean))
I am sorry you are hurting so much right now. I am curious why you didn't drop off the check when you said you would? Could it be you were hoping it would make T contact you?
It sounds like you are confused. You say you have a lack of boundaries and that she has been firm with you yet encouraging. This doesn't feel like a reason to take a break. Taking a few weeks off when the going gets tough usually makes them even more difficult to deal with because they don't go away, they just grow bigger. I know it feels like it is too much to face sometimes, but it's usually better to try to deal with those things that make us most upset. It where we can grow the most. They are opportunities wrapped in pain.
I think you should drop off the check that you said you would and then ask for an appointment to talk about your need for a break and the additional money that she said is due. You and T have had a good relationship so I am sure that you two can work this through.
In the meantime, take gentle care of yourself.