Add Yahoo as a preferred source to see more of our stories on Google. Even if you're close, there are red flags that a friendship isn't worth staying in.Yusuke Nishizawa/Getty Images All friendships ...

Every time I host or attend an event, I’m astounded at how terribly inconsiderate some people are — multiple last-minute cancellation texts or guests who’ve simply gone MIA have become all too common.

Just like romantic relationships, friendships have their ups and downs. Conflict doesn't mean your friend is toxic. However, not all tensions are fixable, and not all differences are worth enduring.