I think you need to stop obsessing over every single tiny detail, Bruton. Clearly, the rest of us don't find anything special about when it rains, when some one cries or gets hurt, or especially if there's any connection between any such events (which there aren't).
As for why you don't see a lot of people here lately, it might be because you have something the rest of us don't: too much free time. Personally, I'd love to have a ton of free time. I'd love to have time to do things I like, like writing my fanfiction. However, that's not the case for me. I've got college work to deal with, and I'm sure that if you ask anyone else, they'll have a similar reason for not being nearly as active as you. If you really do have so much free time as to check each LBT movie for every single detail, you really should find something else to do with your time, something that won't bother us so much.
Though if you insist on an answer to your question here, I'll just say that I think the rain should have stopped no later than the start of the song. As Ludichris pointed it, I think it would have ruined the feel of the song.
Seriously, please try to stop making mountains out of anthills. <_<