Why won’t he leave his wife for me?

I left my babydaddy of almost 17 years to be with him. He won’t leave her alone. When we were messing around, he wouldn’t let me talk to her. He wouldn’t even tell me who she was or anything. He promised me he was gonna marry me and even purchased me an engagement ring. Why won’t he leave his wife for me? I don’t understand why I can’t have him but she can? They are having their first child together.

Why won’t he leave his wife for me?
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