The phrase “hung up on you” typically means that someone is preoccupied or obsessed with another person, often in a romantic context. It can imply that the individual has strong feelings for someone and is unable to move on or let go of those feelings, even if the relationship may not be reciprocated or has ended.
For example, if someone says, “I think he’s still hung up on his ex,” it suggests that he is still emotionally attached or affected by his past relationship. The phrase can also convey a sense of nostalgia or longing, indicating that the person is unable to stop thinking about someone they care about deeply.
In a more general sense, “hung up on” can also refer to being stuck or fixated on a particular issue, problem, or situation, but it is most commonly used in the context of relationships.