So I left my sugar gliders with someone for a few days while I was away. I guess he misunderstood me and gave them treats everyday. He said he put like 7 treats in their food bowl (along with there fruits and veggied) everyday, but said they only ate some of the treats. Are they okay? Have they had too many treats? What do I do?

what kind of treats are they?

They were yogurt drops from exotic nutrition

if I were you, I would just not feed her anymore yogurt drops and limit her "treat" selection to just fresh fruit for a while so she can get back on track:) I wouldn't worry about it too much unless she starts showing serious signs which shoudnt happen.

yogurt drops are sugary. so your glider got a nice dose of sugar, maybe put on a few grams of fat, and ran around cage like a 2 year old on soda pop.
I'm thinking in the long run everything will be fine. In worse case
call your local vet and just ask them.