<human>: i have a crush on a close friend of mine. we have been friends for over 5 years now and even lived together in a flat for a year. shes had two boyfriends in that time.

recently her latest boyfriend left her and i want to ask her out. i am not sure if she knows im into her, but some of my friends do. they even made jokes sometimes of how cute of a couple we would be. i never tried to flirt with her, out of respect to her boyfriend.

should i give her some time after the breakup? i am scared that if i wait too long she will find another one.

another thing is i never had a girlfriend (never realy wanted one) and dont know how to aproach girls. i get along well with her but only on a friend level. how do i get her to be attracted to me? as i said i never tried to  flirt with her and dont know how she would react to that.

Can you condense the text into three sentences or less?
<bot>: i have a crush on a friend of mine, and she is finally single. how and when do i approach her?