What should be done if someone is "hitting up" your significant other?

It is not a big deal as long as the significant other isn't responding; the person does not need to be removed or blocked.

The person "hitting up" your significant other should be confronted.

Nothing should be done because even though someone is "hitting up" your significant other, you have trust in them so the person should not be removed.

The person trying to "hit up" your significant other should be removed or blocked to prevent problems in the future.