Looking for movie title

Hello. Im looking for specific movie. I looked everywhere and nothing, nobody could't help me. So, Its comedy, but sometimes sad, Its about few couples, friends, and their relationships. One scene which i remember is When man throw pills (for hard sleep) to his wife tea(or whatever), and then When she sleep, he masturbate on her boobs, (Its all cause she doesnt want to have sex with him). There are few more couples, and they have problems too in their relationships. Yeah, weird, but maybe somebody remember name of this movie? I cant find it anywhere..
PS. Its not "couple retreat" and nothing older than 2000