Frustrated Female (Again!!)

Hi, as you know my female laid some eggs about 3 weeks ago, and since then she has been seperated from the males.
Before she laid the eggs she was very frustrated and was swimming constantly for many hours then she laid the eggs..

However, she has gone very fat again and is very frustrated and swimming about.

She has had no contacted with the males as they on other side of the divider, so can she lay eggs again?
She is certainly got very fat in the past few days and the frustration is certainly looking like she is going to lay again.

How is this possible?