She won't motivate others by being optimistic and will always remind them of the truth of the situation. Whereas a sigma female is self-motivated. Despite what situations she faces, she never gives up and always has the brighter side in mind.
A delta female wants her partner to have qualities that will support their relationship in the long run. A sigma female wants someone as powerful as her or even more.
A delta female extremely afraid or uncomfortable about facing conflicts. On the other hand, a sigma female doesn’t feel shaken when she faces confrontation.