Don't let sorrow affect the outcome of your life. You can't predict what happens tomorrow. The only thing you can control is how you respond to it. Live your life the way you wish too. Don't let what you can't control, control you.

Life is pain. Life is suffering. We all experience it in different ways. If she makes you happy, don't let her momentary lapse effect your judgement of her. Humans have multiple urges. Perhaps she's hiding her true feelings of you, she may feel the same way as you do. You'll never know unless you spill the beans.

Find the power to heal yourself from your suffering. Set yourself free.