HI Paul,
I agree with the others - it's great that you joined! Hopefully Sue will find her way here to because especially in times when you're down this site can pic you up.
Unfortunately we won't be able to offer you both a miracle cure for p

(which I guess you haven't been expecting anyway).
There are a lot of people on here that are not directly affected with p. Maybe it's worth trying to do a topic on it and see if you can share information.
I have recently very much thought about the aspect of closeness in relationsships that you talk about. It has put a lot of strain on my relationsship as well :-/ but I still hope my boyfriend and I will get through it.
Maybe it might help you to read other members opinions on that. Here is the link:
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Loginfeel free to write your point of view from the "other side" as well if you want.
Welcome to the board! I hope it will give you at least part of the support that most of us (direct) p sufferers get from here.
sheepful