Let them focus on the negative.
Let them be miserable in their life.
You focus on your life keep the positivity don't let someone who is petty ruin the good in your life. When someone is trying to tear your life apart means a couple of things.
- They are jealous
- They're not happy with their own life
- They're just a horrible person
Choosing to be positive and having a grateful attitude is going to determine how you're going to live your life.