Yes, Jesus said to forgive people seventy times seven, which is all but infinite forgiveness. However, we need to be guarded about who we bring into our closest circle.
It’s so backward to find this in the last 15% of the book! This is what I have been saying throughout. If you do all the things in the first part of the book, you are absolutely NOT guarding your heart! You will end up in relationships with people you will wish you had never met because you’ll already have intertwined yourself with them before you realize what a bad fit or bad person you got hooked up with. It’s the same reason it’s good advice not to have sex with people you don’t know, or not to marry someone you met two months ago.