4 Answers

You are supposed to think how you would feel if YOUR wife were texting and professing love to YOUR cousin. 
Then you tell her you're done and leave her alone.  

Of course you know what you are supposed to do!  Act like an adult and leave married women alone.  And remember, when you start to think how glorious it would be to be married to her...if she'll do it WITH you, she'll do it TO you.  Hunt elsewhere!

I hope for your sake your cuz doesn't pick up his wife's 'phone & check her messages.

Ducky

I hope he does!

She is married to your cousin, have some integrity, leave her alone. If she is unhappy she needs to deal with it, leave or get counseling. Stop being a guy and be a man. You are courting disaster. There are boundaries, and you crossed the line.

I understand how you feel and I know it's hard. You should have never allowed it get this far. Do the right thing, walk away.