What makes you so sure assassins would come to rescue her? she can take care of herself by the abilities you've outlined. With this she'd merely be toying with her opposers.
Don't get me wrong, Aagni will be there because he crushes for her. But she seems perfectly capable of handling herself.

Also, whats this about Sasha ever having a husband? Theres nothing about this in her history. If she got married to someone then why was she opposed to consumating their marriage? For that matter who would even want to try to rape Sasha. Shes essentially all powerful, kill you in one hit and all. Thats just completely unlikely.