You ever met someone, and they were alright but you could sense the more time you spent with them, the more they'd become a petty, whiny energy drain?

If they’ll do it with you, they’ll do it to you.

And slightly off topic, there are also times when you actually want the best for a person but they’re so invested in their version of their story that you know there’s little chance of change. So interacting with them becomes very emotionally draining.