RL insurance murders sometimes are more complicated than even the most contrived Detective stories, so if future have this technology then it's quite likely they'll go that far.
This doesn't make any f--king sense...
If she's married to him in the future, then she doesn't need to go back in time to save him because he's alive in the future.
It's so dumb.
Why can't a woman do this to me . Not the future stuff but the fake a fulfilling romantic relationship for a few years then kill me for the insurance money part