I'd prefer not to masturbate at all and have the pleasure of a girl all the time, but unfortunately the distance my girl friend and I live apart means that's not possible.
In a previous relationship I had, where we lived closer and had a lot more sex, to the point where I was actually getting more than I wanted, I wasn't complaining though , I actually enjoyed a bit of time to myself and have a masturbate.
It's easy, and on your own terms, I guess it's just all about yourself, no one else to worry about.