Hi

I would lay all my cards on the table.

At the next invite/lunch/flirt say, “I don’t want to be together if we’re not Together, you know what I’m saying? I’m being asked out/set up by other people and I want to be Clear, so there’s no undefined relationships.”

He’ll either Confess, and you will be a couple.

Or he’ll play it cool, in which case he knows other guys may very well be around you. And, it’s better for the work environment, by the way.

But I warn you, him only seeing you on weekdays is a red flag. Tell him to ask you out on the weekends for a while and see what happens.

Next time there’s a Connection, get a Commitment or a love declaration/confession before sleeping together. Otherwise it gets weird, and you deserve better.