Does he love me?

This married phd student teases and actively talks to me in front of everyone but goes all quiet when we are alone. During one group trip, he had told me he had been having problem in relationship and they were separate and they are taking help from psychologist, later he asked me whether he can kiss me, initially I was reluctant, after few times I let him, we got pretty intimate that day (no sex). Since then we do even share bed during sleepovers (we do kiss and hug also). He is really playful with me when we are around our friends, but when we are alone he will be so focused on his phone, like he's some different person all of a sudden. I also had situations where he's really kind. At those moments I have even felt like he has feelings for me.
Does he love me?
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