Sorry I started to reply and got called away.
It sounds like you have had a really tough time. I am so sorry about your experience with cc and the passing of your friend. You have had such a lot to deal with I am not surprised you are feeling wobbly.
I would say that an appointment with yoUr GP is a good start. They will be able to reassure you about any questions you may have about HPV (I am pretty sure a little nooky cannot reinfect you, as I believe once the virus is with you, it stays with you but can be active or dormant. So you could have heaps of sex or none at all and have an equal (unlikely) chance of the HPV virus appearing again. If you do test positive for it again, which is unlikely, you are being closely monitored and it does not automatically mean it will cause cancer *this is my understanding but GP will be more qualified to discuss*)
Secondly you can talk about your feelings of anxiety and put steps in place to move forward. Depending on what treatment you had, you may never have had a nurse appointed to you, who are also there to support you emotionally on your journey. Although it may have been a short journey and thankfully picked up early, it doesn't mean you won't have emotional scars from it, especially having lost your friend. Also I think the experience of the examinations and treatment is pretty hard. I think it must be very hard on you if you have not had to go through much poking around there before. The only way you will know if this helps is to try :-)
You could also talk to them about the UTI's you have been getting as it can be excrutiating and there may something they can do.
I hope you are able to find a way to start to move forward. You won't feel this way forever, and if your other half is worth his salt he will wait for you and help you get back on track.
Big hugs to you