I would be crushed. . .
if you kept secrets from me
if you had relationships I didn't know about
if you disappeared for long periods of time without calling
if you risked my health or happiness by having unprotected sex
if you don't allow me to sexually fulfill you
if you don't tell me when you hurt
if you don't tell me when you're happy
if you don't tell me how you really feel

Basically it all comes down to communication. As long as we can talk about everything, as long as I still feel in the loop it's likely there is a way to have everything you want.

It all stems from fear, my fear is that without communication the relationship will break down. I'll misinterpret actions and get hurt when no hurt is intended and I fear that once I am hurt things will go in a downward spiral till I lose you.