I believe that in order for someone to be happy, one has to learn the beauty and strength that comes along with pain, loss, failure, and disappointment.
Even if someone has left you, be the one who stays. Be the one who does not ignore significant people around you. Who decides to stand by them.
You deserve to believe in the leverage of happiness, and the love of a family, and the beauty of friendship, and the benevolence of divinity.