I think she was aware, LisaR saw that Eden was trying to engage Kyle regarding Kim at various times(most noticeably at Lisa's own BBQ), and should have tried to shut Eden down. Or at the very least, pull Eden and maybe suggest to her she should discuss it with Kyle one on one, as opposed to doing it in front of the group. And wasn't Eden already asking Kyle some very personal questions about Kim and their family history before LisaR made the death/enabler comments? LisaR knew what she was doing, she just played it very, very badly.
I really don't want to see Kim or hear about her anymore on this show, but sadly, looks like she will be back. Please, Kyle, Mauricio is making tons of money now, you have your store expansion and your upcoming TV show...you guys can afford to pay her to not come back to this show just so she can cash a paycheck.