Boyfriend said to my former colleagues that he hasn't seen me recently. Why is that?

We worked together... but no longer.

We are now a couple (at least in my mind) and a former coworker of mine called me yesterday to ask how I'm doing and that he spoke with my boyfriend (not knowing he is a boyfriend) about me... and that boyfriend said he hasn't seen me recently.

Why is he hiding our relationship from them?

Boyfriend said to my former colleagues that he hasn't seen me recently. Why is that?
Post Opinion