How can I tell if a guy genuinely likes me and not just wants sex?

I don't want to make this too long

I'm starting dating again, I'm interested in someone

I'm not into casual sex, at all. Also, I would never have sex in the first dates or anything. Also, I don't date two at the same time

I have no problem writing to the guy or anything that involves initiative, but how I do know he's taking me seriously and not just expecting for sex eventually? I'm assuming a guy like that wouldn't go on 6 dates with me or something, obviously, but any tips to know before that?

But honestly, how do I know if a guy actually likes me? Not just in an attraction/sexual way?

How can I tell if a guy genuinely likes me and not just wants sex?
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