Nobody opens a dating app expecting to play mind games, but that's precisely what happens. Behind every swipe and message are strategies that nobody admits. People claim it's all spontaneous, whereas ...

In the relatively short time they've been around, online dating apps have transformed how we hook up, date and fall in love.

A person who feels unheard at home may connect with a colleague who simply listens. What begins as emotional comfort can gradually cross boundaries, an expert says.