This is just my conjecture, but,

I think they might have some regrets left over...

You're saying that if you grant those girls their wishes... Then there's a chance you might be able to turn back

But... I still don't know what their wishes were, so I couldn't say anything...

I understand...

But... Since they appeared after I ran...

I thought, it's got be something related to running,

But what exactly their goal is, I don't know