Here's what I've learned in 25 years of dating:

• Don't sweat it when he checks out other women... at least you'll know he's not gay!
• The more prepared you are to have sex, the less likely it will actually happen.
• Never use a ring tone by your favorite band for your beloved, or you will ruin your enjoyment of that band forever when you break up
• Never ask a boy to do a man's job 
• You'll know it's really over when you finally delete him from your favorites on your cell phone 
• Have your own friends, finances, and hobbies. 
• If he tells you your taste in movies, books, music, or friends suck, end it immediately.
• If he doesn't like your pets, end it immediately.
• If he shoplifts while you're out on a date, end it immediately.
• Don't rely on a mystical connection between the two of you unless you balance it with a close friendship and communication.
• Don't sleep with 2 members of the same band.... ever.
• If he's threatened by your career success or thinks your career is meaningless, end it immediately.
• If he takes you to strip clubs and watches porn in front of you, and you don't mind, then he'll be yours forever.
• If unsolicited, he tells you you're fat, it's over.
• If he cleans your toilet, litter box, stove, or shower drain, especially without being asked... he's a keeper!