Spend all day playing computer games, never let a point of disagreement between you go, stop washing, stare at other womens arses like next weeks lottery numbers are on them, suggest she spend more time with her 'really good friends that happen to be men', refer to her tits as 'fun bags' (you may be able to come up with a few charming pet names for other body parts) spend all your money on booze/weed/computer games/junk food (delete as personally applicable), leave post-its with girls names and telephone numbers in strategic areas, start listening to death metal/Dean Martin depending on where she stands on the musical scale.
If that little lot don't you dumped within a week it must be love...
If that little lot don't you dumped within a week it must be love...