I have a question for providers. How important is it to you that a hobbyists finishes? Is it insulting it it doesn't happen?

I am on a mediation that makes it hard for me to reach orgasm. It's not impossible, but it is hit or miss. It still feels really good. I love giving pleasure too, but sometimes the big finish just doesn't happen.

This is creating some awkward times when hobbying. I've tried to let then know ahead of time. Some refuse the appointment, or I've been accused of milking the clock. How do I communicate so the provider understands my situation?

How do you handle these situations?