I'm an alum, but I'll answer from pt of view of college summers home.
I always had a great relationship with my dad, and when my parent divorced, I spent times home living with him. (Parents have since remarried...each other.)
Mom and I had a TOUGH time dealing with one another in college. Took until I was about 25 for us to find our way back to one another. She just thought back then I should do everything on my own, and while I appreciate the value in this thinking--an 18 yr old away from home for the first time NEEDS help and support from home. Dad gave it, he was great, perfect, amazing, incredible, the BEST. Mom didn't get it then. She does now, I think.
We have a great relationship now. My parents are both great--but it gets easier, I think, once you're totally grown up and totally on your own.