Time will heal you.

Why would you stay in a situation where you are not happy? Why would you choose to exist rather than live?

Don't wake up one day and realize that you wasted years of your life. Don't stay in a relationship with someone who doesn't care about your well being. You deserve to be happy. Change is hard and it's scary...believe me I know. It's difficult to imagine life being alone again and doing things by yourself. There may be tears and you will feel overwhelmed at first. Once you rip the band aid off things will get better. Time will heal you and you will discover yourself again.