Continuously kidnap everyone else they date, consoling them each time another one disappears, until you're clearly the only person they should date in their perspective. To be continued
Okay, so the least ethical/legal, but the most effective I can think of, is to blackmail them. I know that because it worked on me. Not for me, but on me.
As for least effective, literally anything involving a ukulele anywhere outside of Hawaii.
Caption this Meme
