Is love real?

[Spongebob]

So far my experience with Ahri is that the conversation is always over after the first post.  The duck and dive is his best skill.

It's common in many mental health disorders. Consider it a type of self preservation. He enjoys the fantasy more than most of the negative consequences. Once he encounters a consequence that causes enough harm then he'll attempt correction. But it typically only lasts until he feels no longer in danger of further harm.

It must be some sort of sadistic obsession.  Keeps posting and baiting as if he has something meaningful to discuss, but as you said gets scared and runs off.