TwentyWeeks said:
He seems to have his head on straight and mentions there's probably no room for a real relationship between them, so fair play. That said, there's several steps between exploring dating ("my first girlfriend") and settling down, that's a giga projection of hell on your end
If your excuse for being a whore is "well there's a difference between my first girlfriend/boyfriend and my wife/husband" you need to do better. If he sees no future he should either talk to her about it or end it if he truly sees no betterment. He (or any man for that matter) won't do it because they're just interested in whoring themselves out. (Women aren't far either from this, btw)