I have been in a similar situation, and she said hus started feeling jealous.. we just decided to stop. It’s very hard to do it, but much better than a situation where u mess up her life , and hus even though he is a cuck we shud respect him for sharing her with us and trusting us. So in my opinion it’s better to put a full stop and delete all contacts, social media, pics u might have . Else you will go through those and end up meeting again.
And keep meeting others , slowly u will reduce thinking about her.
for future playmates, make it a policy not to text chat, just text on previous day onwards to set up mood, otherwise just stick to platforms like this. Limit talking personal stuffs, just stick sex , sexual experiences, fantasies,