This should be obvious. If you can't please your woman, why the fuck wouldn't she cheat? You can barely last 30 seconds, constantly disappointing her and leaving her dripping. Dripping and prime to be fucked by some big hot guy. Maybe the first time it catches you off guard. Maybe after a few weeks of this, you stop crying when she walks out the door in her shortest dress. So you have to learn to like it, there's no choice unless you want your beautiful girlfriend to break up with you. Ha, before you know it, you'll be lapping up cum from her pussy and cumming on her heels.