listen. i'm married as well. let me help you out.
KICK HER TO THE CURB ASAP. tell her i told you so. shoot, let her read this post. tell her to kick you to the CURB. tell her you reallly reallllly really like her a lot. but you REALLY REALLY REALLLY love yourself. and right now. you're feeling like being a young man and do what young men do. and its not all about chicks either. cause dudes unlike ladies, do not think about chicks 24/7. tell her, nope, you dont have a side piece that you're trying to leave her for. its not like that at all. tell her you're saving her from a life mistake anyway. she will WISH she had her freedom at 18 herself. once she finally does decide to marry someone. tell her if it was meant to be, yall will find each other again later on in life . like late 20's, early 30's.