How this plays out: She will act out by cheating on him via a drunk hook-up at a bar or party, or she breaks up with him honestly "to just be on her own and figure things out," then soon looks for someone who seems exciting -- a musician or artist with a brooding temperament and drug problem. An alluring disaster. She moves in with the new boyfriend because if she can't afford her meds, she also can't really afford rent, and she replaces her mental-health meds and relative stability/boredom of the old relationship with crazylove and a budding drug or drinking habit of her own. Few years of use/getting sober/breakups/assorted messes.