Well, although I don't know how truly aware he was of your libido back then, the truth is that many guys are so used to not getting as much sex from their girls as they want, that they'll just watch porn and get off quickly instead of having to go through the annoyance of asking their girl for some when she's most likely not in the mood. Of course, there's also the guys who are simply hooked on porn, one of my very best friends being one of them. In fact, he'll still jerk off at least once a day regardless of whether he gets sex from his girl on a daily basis. I for one don't care much about porn these days, although I did so in the past. However, whenever I've had a steady source of the real thing, masturbation (not to mention porn) doesn't even cross my mind.