Extreme claustrobia?

Claustrophobia is most basically known as a phobia about closed spaces.

However, I discussed it with my psychology teacher, and there are different, lesser known, symptoms and triggers of claustrophobia.

I've had MRIs before, and been fine. Usually I can handle tight enclosed spaces. Though I will be quicker to freak out in one than most. Crowds I'm fine in. (I come from NY!) But here is a weird one; I freak out over things on my skin.

I'm not one for skin-to-skin contact. I love hugs, but never skin to skin I just bugs me and I feel violated and such. Some kids and teens draw on their skin when they are bored or to write notes down. I have issues looking at someone with things written on their skin, and have MAJOR panic attacks if someone tries to write on me.
However, oddly, I can handle acrylic paint getting on my hands whilst I paint.. odd thought.
Anyways, I have issues with it all, temporary to real tattoos, henna, gel pens, all of it just makes me freak out!!!!!

So I was speaking with my psychology teacher about it and she thinks it could be claustrophobia. I agree.

Now here is another addition.
I'm completely claustrophobic as far as relationships. (as in dating, not friendship) I have a boyfriend, and we just hit our 4 month. And already, I'm freaking out. I have these crazy fears that I'm denying myself opportunities with other people, that I'm missing out by being with him. So why not just break up right? Because I do really like him and don't want to break his heart and even more, it would break mine. I'm too young to know what true love is, but I know what the love you have for friends and family is, and I know I love him more than that.

Any thoughts on what to do about the relationship are well welcomed as well as about the basic claustrophobia like the skin-to-skin contact thing!