I think forgiveness is important, but as far as letting people back into your life, it sort of depends on the situation. There isn't enough information for me to speak on that.

I feel like people put far too much stock in Facebook and social media. I have recently deleted all of my social media because I realized that it has been a source of more harm than good in my life. If people are upset that you deleted them from Facebook, that is fairly shallow and something they'll have to get over. You're under no obligation to add people to social media if you don't want to.

I think it's important, when dealing with other people, to listen to your intuition. Does being around a certain person make you feel good? If not, then it's okay not to let them into your life. Of course we don't want to be closed off, but at the same time, you don't owe anyone your friendship.