Why does my crush keep making really forward jokes about dating me, having sex, saying "love you"?

We've got some flirting going on, just classic stuff. Always in each other personal space, teasing, compliments and stuff.

But he's always joking like:

Saying "Love you!!!" all the time
Saying stuff like "do you kiss on the first date?"
Saying stuff like "you'll be the shortest girl I get to sleep with"
Saying stuff like "now you're single, you gotta let me look after you"
Saying stuff like "we should grab coffee now we're not under house arrest"

All said in like a joking way?

Cus it's all so weird, does it mean he doesn't like me? Surely he'd be more reserved if he did?
Why does my crush keep making really forward jokes about dating me, having sex, saying "love you"?
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