<human>: Can you succinctly summarize the text in 1-3 sentences?

In the last six months I found myself single, and got back in touch with an ex, "Jane", who is also single. We broke up quite amicably a few years ago when we ended up in cities thousands of miles apart and neither of us wanted to do long-distance indefinitely. While we're both single, we tend to be in contact a lot, and quite flirty.

Because I had some savings I could afford to spend, and plenty of annual leave to take, I decided to go visit her this summer. I'll be going about a month from now. I don't want to sound presumptuous, but it's very likely that we're going to be physically intimate.

The thing is, I've developed extensive psoriasis in the last six months. It started off a few years ago with some patches on my arms, which Jane has seen. I've told her it's gotten worse since then, but I think she doesn't understand just how bad it is. It's really fucking bad. My whole torso looks like it's rotting. I'm disgusted by it, and I can't bear to take my shirt off around anybody. I can't even look at myself in the mirror.

I was Skyping with Jane yesterday, and between one thing and another, she ended up in her underwear. She looked amazing, perfect. In comparison, I look horrific.

I've been waiting for months for an appointment with a dermatologist. That won't be until a week before I go to visit Jane, so I doubt that there's going to be some miracle cure.

I'm trying to figure out how I can give her a reasonable warning about just how bad this is. And to let her know that if she doesn't want to do anything physical, then no hard feelings, we can just hang out as friends.
<bot>: I'm sickened by the state of my skin due to psoriasis; want to warn my long distance sorta-girlfriend.