The thing about forgiving oneself, for me personally is to go back and give myself an honest assessment of myself for starters. (I'm looking back on some of my personal journal notes and toggling back here, for the record)
"I truly thought.....xyz....
"I truly believed...xyz...
"I believed they were meeting me in the same place...same plane...shared vision..goals, etc...

"What I realized....

"...not having my better interests...
"...didn't recognize it because....(that's where the trusting nature comes to play for me)...focus on their life/complaints/critiques/emotions...
"....bottled things up....

Sometimes life becomes convoluted. And sometimes the toxic nature of a relationship isn't blatantly obvious. Sometimes it's insidious. How were you supposed to immediately know it wasn't right for you? Aren't some relationships designed to run their course?
Sometimes it's not immediately clear. Sometimes it's downright confusing because the guy can be giving you warmth and attention and it seems like it's legit. And to an extent it is legit. At the same time, is it with what's best for Eve or what's best/or in it for them?

My thought isn't so much on why he'd say that causing you to believe the entire thing was a lie or a shame but is he perfectly incapable of fostering the depth and nurturing that has you in mind?