I'm afraid I scared my with my anxiety

There are about 2 people in college that I have met so far that haven't made me feel like shit about everything and anything I do. I don't know how I managed to start of college and the first group of friends I make end up being people who picked don everything about me, from the way I ate, to things I said and wore and did. I already have problems with anxiety and depression, so it sucks having to hear all those things in a college which is supposed to be a safe space.

I was hanging out with someone who said something to me the other day that really made me feel terrible (I was already feeling terrible) and then I just kind of left. After wandering around the building for a while, I saw one of the people that I'm actually comfortable with, so I sat with them.

Sometimes I get into states where I'm afraid I'll hurt myself if I'm not with someone. I get too involved in my thoughts and then things get worse. I have this person as a dear friend, because whenever I hang out with them, I don't think about any of my problems.

I was kind of shaking, and really nervous, but it was okay if we didn't talk. They were kind about it, asked me if I was okay, if I needed a hug, and then gave me a bunch of their stuff to play around with because I always have my hands occupied with something, and they know this.

However, I'm still afraid that my panicky self may have turned them away, and that I will have lost them as a friend. I don't think they understand to the extent that I hold them as a dear friend, which is okay. It's hard for me to actually see them around campus if we don't set up a time before. I was actually thinking of apologizing the next time I saw them, but then I think that they wouldn't be a true friend if they wouldn't be there to support me.

What should I do? What do I say to them the next time that I see them?