Thank you for the replies. Much appreciated!
If I remember correctly, the area where my aloe was kept before I bought her probably received more indirect sun than direct. When I asked if I could set her in direct sun, I was told yes, but no mention of slowly acclimating to it.
So I think sunburn is probably what happened.
I have repotted into a cactus/succulent soil. The soil she was in wasn't draining well and when I took her out of the pot the bottom drain hole was covered by a large piece of flat rock. So there may have been two problems going on...sun and damp soil.
I've cut back a couple of the damaged leaves , since they have shriveled even more and dried brown. I've also moved her inside to my kitchen window which is west facing to help her recover.
She may remain an indoor aloe, at least for now.
I think I'll start fresh with another for outside and acclimate it slowly to an increase of direct sunlight.
