So I just bought two sugar gliders and one is really sweet most of the time, the other is a little moody but not bad. Well they both will get into the pouch and sleep with the pouch around my neck and will crawl around in the pouch and such. However, if I look at my sugar glider, the not so sweet one. It will crab at me. Is there a reason why and a way I can help with this?

Crabbing is normal for sugar gliders - especially if you've just got him. Be patient and keep working on bonding. The crabbing will go away as he trusts you.

I second the previous statement.
It just takes time. Currently you are a very large, weird smelling stranger who makes eye contact like predators do. Since they are very small things, that's weird to them. They will get used to you soon. Patience is the greatest key to Sugar Glider owning.