: Ian struggles deeply with his bipolar disorder, leading to a mandatory psych ward hold and a eventual breakup with Mickey because he doesn't want Mickey to suffer through his illness.
Season finale; Mickey and Sammi are arrested; Ian leaves Mickey If you're interested, I can provide: for specific character endings in later seasons A list of where to watch the show right now Details on why certain actors left the series
Ian is hospitalized; Fiona faces the fallout of Jimmy's return " Drugs Actually " Christopher Chulack