Is there any way to bring back to PPro the individual segments of edited footage once it has been sent as a block to AE?

Unfortunately, I put my foot in it big time. I was editing a 4-minute video and working some segments in AE using the creative link, that is, using the Replace with AE Comp command. In a moment of absentmindedness, I managed to highlight the entire footage (it was all edited and ready just for final effects) and sent it over to AE. Didn't notice I had done that, so I saved and quit everything and turned in for the night. Now I'm back at it and find the mistake I've made... unfortunately, a 2-hour job has now turned into a 4-hour job (and I'm not nearly done) because it's really hell to run through the AE comp (even at 1/4 preview resolution)... As an example, every time I press space to preview I have to wait about 10 seconds for it to start playing the first frame!
Anyway, my question: is there any way of breaking the original edits free from that pink AE Linked comp block? Bringing them back into PPro so that I can work individual segments in AE and not the entire block?
Thanks in advance!

I always undo after sending segments of my edit to After Effects. This only undoes the premiere deletion and AE linking, the edit is already sent to After Effects. I have never found the linking of AE projects into Premiere to be very useful as my AE edits are usually too heavy, and I like to maintain the footage in premiere. It would be nice if Premiere had an option to send to AE without linking or deleting, but hitting undo is relatively easy.

Check out 9 Slice Scale.
A way to scale graphics while preserving the border and corners.
An FxFactory Plugin for AE, Premiere, Motion and FCP.
http://monadnock.org/9slice/