As Friends
The people who are always dumping their partners are mostly the ones who have commitment issues, and they find it hard to settle down. It might be a blessing in some cases but such occasions are rare. For those people, the question arises of making their breakups less hurtful.
It is never easy to break up with someone, however, remembering some good things to say while breaking up counts as an effort, like this chat here. Just be sure that the person you are breaking up with hasn’t watched the film you are stealing the breakup lines from.