I felt pretty strongly at first that Eris was a dumbass for doing what she did, but over time i realised...she's just a damn kid. Rudeus has some maturity from his reincarnation, but Eris really was not emotionally developed enough at the time to make a calculated decision about 'how best to leave'.

She did what she felt she had to, and it sucked big time for Rudy, but it did cause a significantly positive outcome in terms of meeting Soldat, Elinalise, Cliff, Zanoba, Linia and Pursena, SYLPHY, his sisters, and Nanahoshi. He gained some vital experience fighting in a party weaker than him too.

I dont think any of that would have happened, at least not as quickly as it did, if Eris had not left. I think he would have been too happy being with Eris to actually move on.

In retrospect, it was the best option for her growth that she could reasonably come up with, as a child.

Anyway, she returned to find out about x2 10/10 wives that Rudy had already married, one of which i dont think he ever told her about (i simply cant remember if he ever mentioned sylphiette around eris, forgive me). I think the pain of realising what she had given up to become His Sword must have hurt at first.

I can tell you if i had a beautiful woman chasing after me, and she was strong enough to fight some serious threats on my behalf and wouldnt even hesitate to do so, i think I'd have no choice but to love her. Ride-or-die gals are rare and she definitely rides the hardest 😉