Time-traveling and piracy

What if every single astronomically successful songwriter, author, or inventor is a time traveler from the future who ripped off someone else's idea, and we're living in the alternate timeline in which none of the original creators get credit for their work? (Then again, have they really been cheated if they didn't come up with it in this universe, and they're hugely successful from it in the other?)

Love and growth

Love of any kind is supposed to help you grow, but there's a distinction between adding to a person's identity and just stretching it out. When you do the latter, you think you're helping them grow but are really just spreading them thin with unrealistic expectations.

Healthy love is a weird paradox. You consume each other without depleting one another; supplementing what was there to begin with.