Very relieving
Toxic people are everywhere, even when you think that you have met someone who is not toxic, they can turn into that person later on in the relationship. So make sure you have boundaries you do not want to cross and know how to spot certain behavior, it will help you out a lot.
But then when you finally find someone that you trust and know will never hurt you, it is a very relieving experience. Just when you were about to give up and never make another friend again in your life, this angel came by and changed your mind. Bless them and their beautiful friendship.