Do guys like to make us jealous?

So I’m talking with this guy for months now. Lately he brings up his exes, or other women in a way that seems like he wants to see how I react. For example, he does physiotherapy now because he broke his leg, and I asked him what treatments does the physiotherapist does to him and he was like “She massages me, I’m thinking of arranging her to come at home to massage me privately”. Of course he wanted attention for that. Like why privately? Hahahaha

I’m wondering, is he testing me for something? Or does he like teasing me like that and making me jealous?