Theories on Donnie Darko

Before I forget, I need to save these theories somewhere, for when I watch the movie next time:

xnoxrewindsx (8:12:30 PM): YOU SAID YOU HAD NEW THEORIES.
WishWashedAwayx3 (8:12:43 PM): about?
WishWashedAwayx3 (8:12:57 PM): Donnie Darko?
xnoxrewindsx (8:13:26 PM): yez.
WishWashedAwayx3 (8:15:24 PM): Okay well, one of the first things I thought I understood was that Frank was the only one who time traveled. I know that much is true, but I figured it out because when he took off his mask, his right eye was bleeding and swollen, which is what happens when Donnie shoots him. BUT then I realized than Donnie stabs the mirror directly where's Frank's right eye is. So I know that Frank is the one time traveling but I just got lost as to how Frank's eye was like that, which incident it came from. Maybe both, I don't know.
xnoxrewindsx (8:16:48 PM): I just always assumed it was the gunshot wound, because there was, like a forcefeild when he tried to stab frank
WishWashedAwayx3 (8:17:58 PM): True, but I think Frank's head kind of bounced back at the mirror part, and there's that growing white light which could mean Donnie was breaking through the field. I dunno, I'm just overthinking that.
WishWashedAwayx3 (8:18:02 PM): Another thing is
WishWashedAwayx3 (8:20:09 PM): I was wondering why Frank even cares enough to go through all the time traveling to give Donnie that choice. Besides being the bunny, his actual character didn't seem too significant. I was thinking that he was feeling guilty because he was the one who ran over Donnie's girlfriend and this was a way of easing his conscience. That way, no matter what Donnie chose, he technically couldn't be blamed because by that point it's more Donnie's fault than his, if he chooses for all that to happen.
WishWashedAwayx3 (8:20:39 PM): That's what I was thinking.
WishWashedAwayx3 (8:21:15 PM): But then I realized that the piece of the plane falling was Frank's doing in the first place, so didn't he spark it all to begin with?
WishWashedAwayx3 (8:21:18 PM): But maybe...
WishWashedAwayx3 (8:21:23 PM): okay now i'm thinking out loud
xnoxrewindsx (8:21:38 PM): how long is this theory?
xnoxrewindsx (8:21:45 PM): okay okay okay, I got kicked off, what was the second theory?
WishWashedAwayx3 (8:21:58 PM): wait, what's the last thing you got?
WishWashedAwayx3 (8:22:08 PM): (and its not really a theory, it's just my random thoughts)
WishWashedAwayx3 (8:22:09 PM): haha
xnoxrewindsx (8:22:27 PM): no I got all of that
WishWashedAwayx3 (8:22:38 PM): you got everything so far?
xnoxrewindsx (8:23:01 PM): mhm
WishWashedAwayx3 (8:23:17 PM): okay but maybe
WishWashedAwayx3 (8:23:22 PM): maybe everything would have happened anyway
WishWashedAwayx3 (8:23:31 PM): it wasn't dependent on the piece of the plane crashing
WishWashedAwayx3 (8:23:52 PM): that was just the what Frank needed to provide Donnie with the choice at the end.
WishWashedAwayx3 (8:25:42 PM): So now I guess I'm back to my original idea, that Frank was trying to clear his conscience. But I still want to know if he accessed all the time travel information from Roberta Sparrow, and I also want to know how Roberta Sparrow got that in the first place. She seems to be the one who started it, and the professor said it was like she changed overnight, literally, so something must have gotten to her. I want to know what happened.
WishWashedAwayx3 (8:26:24 PM): I never understood why she was always checking her mailbox but maybe she knew that letter from Donnie was going to come, she just didn't know when.
WishWashedAwayx3 (8:26:32 PM): But how would she know that, you know?
WishWashedAwayx3 (8:26:36 PM): Okay, one more thing:
WishWashedAwayx3 (8:27:35 PM): When I was reading the synopsis for the movie, it said that Frank the bunny was provoking Donnie to commit all those vandalisms and crimes, but I don't think so. It seemed more like he was just showing Donnie what he was going to do.
WishWashedAwayx3 (8:27:59 PM): I iz done. I think.
xnoxrewindsx (8:28:24 PM): okayz
WishWashedAwayx3 (8:28:46 PM): feedback?
xnoxrewindsx (8:29:30 PM): Well, that's what I saw it as...Donnie seeing the future and feeling either the need to fufill it, or feeling that he didn't have a choice

I NEED ANSWERS.