Hanging out with colleagues?

So my boyfriend messaged me telling me that his female colleague message him asking if she can come over today to visit to see his new place? My partner and I are both very attractive people. She just happened to became single now as well. What do I say?

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+1 y
I didn't give an answer. I decided to leave it up to him to decide. I did though asked him, If I were to go visit my male collage alone at his place while his wife isn't home... would you be cool with it? He was like, hell no!! He apologized and thanked me for not getting mad and helping him see it another way.
Hanging out with colleagues?
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