<human>: Provide a brief overview of the text.

First Reddit post, so here goes. 

Premise: F21 in relationship with M20.  In college, I know I'm stressed which is certainly affecting the mental state.

Problem: This is my first relationship, his second.  He keeps wanting to move physically fast.  I let him try a few things, but I've finally got it set in my mind that I'm not ready to do what he's asking (I'm open minded and didn't want to immediately say no to everything, which I would have--that isn't fair).  I've told him no, and he really shut down and said we'd take it slower.

  That lasted less than a week, and he's already back to ramping up the speed again.  I'm recovering from some long term anxiety issues, and I already have trouble balancing time for myself, how much he wants to hang out, and my work load. I know it'll be hard for him to go slower after I've given him some leeway, but I can't emotionally handle the physical, if that makes any sense.
<bot>: How do I tell him he's moving too fast and we need to slow WAY down without hurting his feelings/completely destroying the relationship?