Love itself is often smashing faces together and making smoochie sounds, so there's that. Also, just because you're capable of doing things that don't require serious mental abilities, it doesn't make you automatically stupid. I bet you sleep as well, which requires absolutely no effort, and yet here you are, arguing with a forty years old postal worker who has written several full books' worth of fiction and codes websites in her spare time, the latter two in a language that isn't her native tongue. =3
Not to mention that shipping very often requires quite a bit of mental effort, because the pairings people ship usually have no canon support, so you have to make up the entire story yourself.
Why are you so jealous of girls enjoying themselves, hmm?