Act like Galliani, he knows how to treat Milan fans.
Tell her that other girls wanted to make a sex proposal to you but you didn't give them a chance to say it and you rejected them even before they said it because you want to be with her only.
Then, after not having sex for a long time, keep talking to her how you're the best in bed because you once had great sex with her months ago.
Tell her that you're the king of the sex just like Milan are the kings of this mercato.
Don't forget to say that even if you can't have an erection she won't need a new boyfriend because your tongue is versatile enough to do the job down there.
There, this will do the job.