All That I've Got

Gerard is an alcoholic and a drug addict. Frank is his terrified boyfriend.
Gerard ends up hitting Frank, and Frank can't take Gerard anymore.
When Gerard goes to rehab, Frank ends up staying with Gerard's brother, Mikey.
Mikey develops feelings for Frank, and Frank develops feelings for Mikey.
Frank's confused.

Disclaimer: Don't own the characters (unfortunately), just the plot.