I'd wean her off the alfalfa hay ASAP by mixing it with grass hay until she only gets grass hay. You can do this over the next month or two. You need to encourage her to eat the grass hay, but at the same time she needs a lot of protein and a lot of calcium.
You can also juggle the pellets -- for now she should probably get as many as she wants, but start reducing them so that she's hungry enough to eat the grass hay. In about four months, she can be back down to the 1/8th of a cup, but for now that's not enough.
A lot of it you'll just have to play by ear. It's really a juggling act.
Is she getting veggies?
sas :bunnydance: