Indie movie, probably between 2005-2015.
Plot: An unsuccessful (screenplay?) writer wants to have sex, on his way home a homeless girl is running away from her drug dealer boyfriend and jumps in unsuccessful writer's car. She tells him to take her home and she stays at his place and refuses to leave (i think). They have a lot of sex and drink a lot of booze and she is a complete mess/whirlwind. He tries to control her and make her do "normal" things. They have a big fight, she leaves and does back to her druggie ex boyfriend, writer goes after her and brings her back to his place. At some point they have a pregnancy scare. I think it ends with him letting her go.
Actors: Young adults. Girl has long dark hair, a big face, and terrible bangs. He is not traditionally/movie star attractive at all, a little pudgy, i think he wore glasses. Both white.
Other things I can remember: I think the title of the movie was kind of long and had the word "love" in it. Apartment was one bedroom. He had a lot of note cards trying to write his screenplay (?). He/they lived in a cruddy part of town. Drank instead of meals. There's one scene where they are sitting on a children's toy outside the apartment (maybe a kiddie pool?) and drinking all day.