Oh SoDev - Not many things are as hard as trying to understand why a crying baby is crying on top of sheer exhaustion. I used to get so frustrated when someone would offer to watch DS when I knew he was upset and only wanted me. I empathize with you. Unfortunately I don't have experience with colic. We were so lucky with that although DS was a terrible sleeper for a loonng time! I do know several friends who had babies with colic, so if you find out that is what Aaron has for sure let us know, and I'll find out what helped for them.
Praying for strength, healing, and REST for all of you. This too will pass.