He actually likes me or just lusting?

so my male bestf and i are friends for more than 4years. he used to like me and we were kinda dating but things didn't go well, i didn't feel emotionally connected so we decided to take a break. and then i didn't get back. I moved on, well, pretty fast than he did. he dated 2 girls after me. now he's single and so am i but these 3weeks we've been hanging out and making out. he gets jealous whenever i flirt with other boys but when i ask him about how he feels. he doesn't answer he changes the topic or do something like kissing me or hugging me or hold my hand.
I'm really confused what's going on in his head.
He actually likes me or just lusting?
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