Name of a movie

There's a movie about a girl and a boy .. he had a crush on her but she wasn't giving him much attention.. i guess they were living in same house but she let him sleep on guest room/couch..

The girl writes books/paint not sure.. and boy name ia Jessy.. one night they had too much drink and slept together.. the gurl regretted that but the boy liked it.. so he leaves her and meet another girl named Veronica and he has a baby with her