Hi,
looks like you've just the the surgery only a few days ago. I can completely relate to your questions, and I think that when faced with the procolectomy, our biggest questions are about intimacy and how much the ostomy will change our relationships.
If your guy is being so supportive, then you can relax about that aspect. But I remember the days after the operation, which was only 2 months ago for me, and I can only say that I did not want to have sex for quite a while. Not that my sexuality was affected at all, no, but my entire sense of my body was set off in such a spin, that that the idea of being physical even with someone I love was simply not there. It is coming slowly back, as I gradually come back to myself and getting on with my life. I know I will go through a less intense version of all these changes when I have surgery to form the pouch, probably in December, and then a bit later, to have the take down. I have to have surgery three times, because I was taking prednisone at the time of the first surgery.
So give yourself as much time as you need to feel like taking up that aspect of your relationship again. Let your body heal. My feeling had to heal too. It might go more quickly for you than for me.
All the best...