The first thing a guy does upon locking down a girlfriend or tying the knot is let himself go. There’s no need to eat right or exercise if you’re not chasing skirt. Once you sit down on the couch to watch a Hugh Grant movie with your significant other, you aren’t getting up -- ever. Single guys keep themselves in peak physical condition in order to attract female attention. Damn, I’m prepared to run a marathon on the off chance I could get laid at the end.