some people love a separate room. We have a guest room with a bathroom, so when one if is sick, we just move to the other room. when i'm sleeping by myself, i get the best night of sleep, but after a few days it does get old.
you can possibly get over the snoring. have you had any sleep studies done? for mild to moderate apnea, you can have a mandibular repositioning device. it's really just a set of retainers you wear, and they stop your jaw from resting on your airway while you sleep. for moderate to severe apnea, you typically want to use a cpap if you can tolerate it.