Or if you don't want to go the direct approach of 'do you care about me?' you could always say 'I feel lately because of indirect replies and such I've received recently that there may be some distractions from what we're trying to do. I have examples if you need them but I was hoping we could talk about this." That way you've made it clear you've noticed something that makes you feel less than comfortable and you want to address it with your T in a non-accusatory way.

Asking 'do you care about me [as a person]' may ilicit a 'yes, of course' response with little assurances thrown in but may not stop the situation from happening again.

Just a thought.