Letting go of past anger is not an easy task. Sometimes we are afraid of the way other people will react. Other times we may really struggle to not let our pride get in the way. Ultimately, holding on to that pain hurts us the most and letting go is the most liberating thing you can do. Send that text, go see people that you don't often see, be that person who makes the effort. You will see that in the end you are left feeling totally free.