How do you hide your affair with an A+ list mostly movie actor?

Well, if you are this A list diva you say that you are kind of single but still profess love to an on again off again ex.

You act confused about whether you should get back together with your on again/off again and no one even suspects what is really going on.

Jennifer Lopez
On again/off again: Casper Smart
A+ list mostly movie actor: Ben Affleck