My wife's primary care doctor prescribes her antidepressant, and I have a psychiatric nurse practitioner that I like. Accessing an actual psychiatrist in my area can be absurdly difficult and expensive, but we've both been happy with the providers we have.

You might also be surprised at how you feel with a new therapist. In some ways it might be easier than going back to L because you have a fresh start without any baggage. I am also wondering how you would feel about yourself for going back to her after a year away since you have fairly ambivalent feelings about your relationship with her. I don't think there is anything wrong with going back to her, but I do think it might needlessly complicate things. Even if a new T has to schedule you a while out, just having an appointment would probably start to make you feel better.