writing my first monologue

Hello, my name is Keegan I am writing my first Monologue for my theater class. I need some advice. I asked friends already, but I think insight from a stranger may help. 

This is a monologue that targets my personal feelings of grief I feel for someone no longer in my life. My friend had me shorten my initial monologue. This is what I have now. 

I am furious at myself. I am furious at myself because I miss you. I yearn for you, but you put me through hell. Eight years I begged you to get better and hoped for a better life for us. I watched you do it for someone else but when it came my turn you told me you were unsure. I refuse to be the woman who lays on her side waiting for you. I will not applaud you for clinging to me only after you lost everything else. Still despite your abuse, I miss you. And I am angry about it. 

tell me what you think and give me some tips please! what do you like about it? what do you hate? give me some constructive criticism.