don't worry too much. Up the calcium in her diet for a bit, scraping cuttlebone over food or baking an egg shell and crushing it up is good so as to avoid egg-binding. Check her abdomen to see if more are coming, you can normally feel it, sometimes even see it. If she takes more than a day with an egg in her but not laying get to the vet, if she passes the egg then let her sit on them and do her thing. There's no risk of babies so after a week or so she should get bored and leave them. Only when she shows no interest remove them otherwise she may keep laying. I've never heard of a bird becoming fixated with their eggs outside of natural nesting instincts.
Try moving the cage around too to help kick her out of hormones and of course limit daylight ETC