Crusading

[Sarah]

When a person likes someone of the opposite sex with the intentions of things going into a relationship non-existant or the intentions just being to hook-up with that person, and these normally end with many people being very confused or emotionally hurt.

[Tracie Lynn]

The futile act of relentlessly arguing a position to a person or audience, knowing they have already rejected it. Often the goal is not to convince anyone, but to [antagonize] dissenters, congratulate oneself for excellent arguing, or perhaps to [instigate] an entertaining or [damning] reaction.

[Agnes]

Vigorously campaigning on a social or political issue.

[Sonia]

present participle of crusade