If I suspect my man likes another female coworker, should I start dropping him at his office premises to be seen with him, grabbing coffee with him?

I think my man likes another woman from his office, and that it's serious. I also think that this other woman really likes him.

SHould i start showing up more at his work premises, dropping him off and getting coffee with him for this other woman to leave him alone? Maybe if i show up with him more often, she'll get the impression that we have a good relationship and that she should stay away from him, and actually scare him too.

If I suspect my man likes another female coworker, should I start dropping him at his office premises to be seen with him, grabbing coffee with him?
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