there are some good replies to your post. for me when i came to that decision making about leaving my t i was excited for the future but sad to leave him. i had had him for 10 years and he too was an excellent match for me. i did move and have never found the exact same realtionship with a t but did resolve to shop around until i found another T that i felt was a good match. it has worked for me.
i sense that you have benefitted a lot from your therapy and have grown from the experience. it may be just fine to take that new job. you sound like you are ready to take the next step in your newly found life. what ever you decide, i'm sure you will make a good decison based on your post. best wishes to you and keep us posted!