How do you know you have a friend

When you can projectile vomit into their trash can and she still says hey friend what can i do to help you ...

thanks Lori for being my friend and putting up with me during all the wedding plans.

Thank You for Being a Friend by Andrew Gold - Golden Girls Lyrics
Thank you for being a friend
Traveled down the road and back again
Your heart is true your a pal and a confidant.
And if you through a party
Invited everyone you ever knew
You would see the biggest gift would be from me
And the card attached would say thank you for being a friend.