Conviction: Murder at the Station (2016)

S4E13 Magnificent Obsession

Blair is completely infatuated with her new boyfriend, Chad, and goes to great lengths to make him happy. However, during a night out dancing, he unexpectedly walks away with another woman. This betrayal forces Blair to reevaluate her relationship with Chad, whom she describes as "controlling," and she begins to consider the possibility of ending things with the man she believes she "loves."