What is the mentality of a man sending ambiguous messages to other women behind his wife's back?

You did the right thing, not too much. Stop before it's too late. If something really happens, it will be too late. But men's hearts need to be pulled, and sometimes some strategies are needed. Examples prove that just keeping an eye on it may not be effective. Men may be curious for a while, but they don't necessarily pay attention. As long as you can catch his heart, everything will pass slowly.