Years ago, I wrote about this, about how omitting the truth is also a form of betrayal. Recently a good friend of mine reminded me of that again. He has is already attached but has a reputation for being really popular with the ladies at work. I've known him for a while and knows that he flirts harmlessly although he denies it and says he treats all of them as friends. HAHA. I then pointed out that he treats me as a FRIEND and not the rest, oh no. I also pointed out that if truly he treats them as friends, then why's he TRYING so hard to justify it to me. (we have a friendship setting that allows me to question him like this :))
I guess that caught him a little bit, that yes, it may be harmless flirting, but he's leading them on nevertheless. And while he's doing all this, the trusting girlfriend suspects nothing. And yes perhaps things that you do not know doesn't hurt you, it doesn't make it right either.
And mind you, just days ago he was telling me about his indecisiveness to take the relationship further by tying the knot. And so I've pointed out that let's work on you giving up the whole 'forest' for one single tree first before you worry about anything else.:) We've already established that the girl is the ONE for him, but is he the right one for her. Just because she is unaware of his 'activity' at work, it doesnt mean it's alright. If I knew my husband is flirting with other girls and forming a reputation for that on top of it all, I would be very disappointed.
Any relationship is built on Trust. Let's get that right.