One of you has gotten into a school, gotten a job, or gotten some other type of opportunity the other has no chance of getting. This is a litmus test to find

out who is actually friends with who and who is just there until the fun stops. 

You guys haven't seen each other in a couple of weeks and no one seems to be making a move to hang out. The distance is reaching Grand Canyon lengths. 

One of you is texting the other too much and you both could do with some space. 

Both of you need to walk away, right NOW. 

Whether it's french fries or whiskey, one of you thinks the other is partaking a bit too much. 

No one is cleaning the dishes? Better have a scream war then. 

One of you need to be reminded the difference between fiction and reality and which side of the line you should be on. 

Her BF is the LITERAL WORST and she just can't see it. Someone has to tell her. 

There's no way to NOT feel like an asshole when trying to collecting the massive sums a friend owes you, but you need to be able to eat this week. 

Sometimes something goes wrong or she just feels sad and won't talk about it. You end up feeling helpless.