Divorce

Khadija asked 3 years ago

Salam Aleykum wa Rahmatullah wa Barakatuhu
I was in relationship for 1,5 year with one man, no haram between us. He lives in other country and we didn’t meet each other. A 1 year ago he asked to marry me, but it’s happened only a 2 weeks ago. 
But today I discovered that after he proposed me he was with relationship with other woman and have sex with her. 
I didn’t know all of this before I married him, so my question is : How most fast way I can get divorced from him ? We only make Islamic marriage not from government. Only with sheikh
My husband refused gives me divorce – can I have it without he’s says talak? 

He lie to me , he cheat me while he already proposed me and asked to be he’s wife. 
thank you for your answer