Do you think he ever cared?

My ex-bf broke up with me 4 months ago. 2 weeks ago he contacting me saying he was doing therapy due to his drug addiction. I asked something about the therapy and he never replied.
It's been 2 weeks and I feel like he doesn't care. He doesn't even bother replying but he is still active on instagram, liking pictures of pornstars. lol Is it normal to feel like he is more focused on his sexual needs and never really cared about me?
Do you think he ever cared?
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