It began with a few pointed questions, like, “Is she pretty?” And, “does she have a boyfriend?” But it has gradually progressed to the point where your S.O. is snooping on your phone to get intel on public enemy number one: your work wife.

RELATED: How to Deal With Your Partner's Jealousy

Office relationships — whether platonic or not — can be tricky, especially if you are a committed male and have a partner who is the jealous type.

We asked marriage and family therapist Esther Boykin to help you identify if your GF is justified in being jealous of the person you work with so much you’re practically married, plus how to settle her fears and set boundaries in the office, if needed.

Could your work wife relationship be moving into dangerous territory? If your romance radar is busted or offline during business hours, read on for key signs that you or your work wife may be crossing the line from friendship to something more, and how to handle it.