You must hit that if shes doable.
I leveraged a burnt Liz Phair CD into a 2 year relationship with 'the' coffee shop girl who turned down all suiters... it was just after her BF left, I played her like a deck of cards.. just like this.
It was my responsibility as a man to insure this hot 110lb waif (her body is exactly like that Milla Jojovich chick) had a noodle to use and enjoy. NEVER let a chick with a smokin body and cute face feel down, shes craving some quality attention minus the overt "I want to eat you like a ham sandwich" look every guy gives her. Yes, you have the same agenda as they do, but because youre different... she'll notice.
Pretend to listen, it will be like torture but keep in mind youre on a mission to land your heat seeking moisture missile at forrest zero, gather intelligence, nod accordingly and take mental notes.
"Hurt" girls are easy. They're not looking for help or advice, they're suffering a huge "I'm fat, ugly and nobody will love me" type self esteem hit... they want a "take charge confident MAN", think not father type, but more like a perverted uncle with a sex agenda.
Use your big boy voice, take charge and reassure her "Ok stop being silly, you're an attractive smart and fun person"... then add a aloof comment about how nice she looks, then leave or hang up, "I've got a few things to do, I promise we'll talk later".. being too eager will alarm her. Dismiss any notion shes "not good enough" for him and offer her a small gift, nothing romantic like flowers, huge mistake as it tips your hand.
Burn a CD she might like or something that lets her know you listen... "Awwwe he remembered my favorite band..", the added bonus is she'll think of you every time she plays it. (hint be sure to play this cd while having sex for added mind share value)
Add alcohol a little later and you'll be ramming that shoulder she cried on into her Jaw as you pound away. The next step is VITAL, YOU MUST LEAVE SOON AFTER SEX... if even to 7-11 or a 15 min walk around the block, you want her sitting alone, freshly done and satisfied reflecting on how great sex was and how nice you are.
Dont stay away too long, after thinking of you she'll start thinking of the other noodle, ie HIM, feeling guilt, a sense of revenge, even a rush that she got even... just then you return and exploit that rush into more sex. If shes dressed when you return, abort mission.. you took too long.
Your efforts will probably not steal her away from him, some girls as just psycho and repeatedly touch fire... then look for comfort after being burned, and that's your "in”'... if you work it right, you can make a career of banging other dudes GF's after each fight...and be too busy getting laid to worry about the morality of it all. Epically if you do them right, they'll cling to the security of having a boyfriend and lust for the guy who has no interest in "making love" or "sleeping", animal lust, manufactured concern and no desire for a relationship make you safe.
One important note, depending on your fighting skills.. you might brush up on a few defensive / counter strike tactics, or get some high grade pepper spray. Girls just love to tell their BF's how you F her better, are nicer and cooler, and the WORST.. "He listens to me!". guys hate that!!!... you could find yourself facing some poor dude who knows you got his GF to do all the nasty things he's always wanted to do.
And hey, if the dude sucker punches you and administers a beating, she'll feel huge guilt and you'll get a sympathy lay.... be sure to act too sore to do much in bed, just lay there and let her do all the work...
If you kick his junk to the dirt, I promise she'll run to him and you'll lose leverage.
Its easy to talk your way out of fighting, think Jedi "This is not the fight you're looking for" (wave hand). Remind him you're abiding by the man rules of not turning down trim, "Bros before hos'"..you're not interested in stealing away his girl, just using her for sex... surely he can relate to that.
The best part is that its not all that important that you be a handsome stud since its your "care" and "understanding" thats being leveraged... a decent movie on this is "The tao of steve" (I think), hes a fat slob that plays this game to his advantage and eventhough hes gained 30lbs, all the old flames still jump into bed with him.
Be sure you are father like confident, have clean trimmed nails, and not smell like ass. Clean & TRIMMED nails are one of the 1st 5 things girls notice, would you want nasty filty jagged fingers up your vagina?
Be aware that you are not getting played, girls are crafty, they'll run you ragged with favors (which are really tests)...things a boyfriend, which you are not, should be doing. The #1 rule is never ever ever take care of another guys GF, be useful but not her crutch. Hot girls are used to guys tripping over thier boners to do them favors, then go home to masterbate after getting a hug. Of course this is silly, if youre not getting laid... there is no point... dont be a typical errand boy, she'll think you weak.
I made a massive error in playing this game, it ended my career...hung out with one of them too long and after a 3 day drunken stupor I was married... so keep a loaded gun around with 1 in the chamber with strict instructions you are to be killed in case a wedding breaks out.... else; null, game over.
