I just looked at them again, and I had my arrows mixed up with my son's crossbow bolts, which are glued. I just grabbed the broken nocks with a pair of pliers and the things pulled right out. Thanks guys!!
I see you figured it out, but I was going to say the only ones I've ever seen that used glue was for crossbolts. If you need to replace one in a crossbow use as little heat as possible to get them loose.
A haiku is just like a normal American poem, except it doesnt rhyme and is totally stupid.