question–movie???

i saw this movie where there are two girls who are best friends. i dont remember there names but we’ll call them…. denise and claire. okay, two of denise’s brothers like claire, claire met one brother first, liked him but not a lot, then she met the other brother a few months later and they fall in love. they keep the relationship straight with the sister but the sister starts to become a bee-itch right? mean while the first brother still likes claire but hes cool about it and nothing happens between them (claire doesnt like-like him anymore, it was just a crush thing. that brother was kinda a player anyway. but they are still friends). anytime claire calls denise, denise will ignore the call but if denise calls claire then she gets mad if claire doesnt answer the phone. denise starts setting rules and stuff. claires does her best to keep peace with denise but its hard. its a pretty frustrating movie but i cant remember what its called. anyone have any suggestions???