Now what would you be thinking of this?

i have been casually seeing this guy for nearly 2 years now.lately though he is doing things like kissing me on the lips for no reason,kissing me goodbye on the lips,calling me babe,today we were on the sofa and he just leaned over and gently stoked my face,after he will hold me with his eyes closed and caress my body with his eye shut grunting lightly he also seems more caring during .whats the deal?do you think he might be developing feelings for me?past casual?surely if he had no feelings we wouldn't be still here 21 months on?