Should I drop him because of his size?

I dated Robert while I was in college about 10 years ago. He was gorgeous, intelligent, creative, ambitious.... everything you could ask for. The only problem was the size of his member. Everything leading up to sex was mind blowing but I was always left wanting more.

The boyfriend I had right before I started dating Robert was blessed in that area, and not having had too much experience at the time, I didn't have much else to compare with.

Should I continue our relationship or force it to fizzle? Robert possesses everything characteristic of my "Perfect Man" list, except one, I wonder if that one trait is too much to overlook.

If I am to end the relationship, how do I end our relationship without hurting his ego?