At the standoff it was just Eugene looking for a diversion to get an opening to commence the dick-biting. He even says as much, stating he was "looking for a moment."
I wasn't talking about then. I was talking about in the factory, after Eugene claimed he could kill the rare zombie spawn that was 20 levels above him with abnormal resistances.
His over abundance of pride and inability to see the difference between he and Abe in the combat department just feels forced. Even if he is childish, Abe perfectly speaks back to him. The rift they show just seems TOO strong, his insistency to say "I can fight just as good as you!" and "No need to welcome me, I've been here for a while!" just seem like they're trying to ruin what could be good character development.
I think the issue is, and I noticed others have mentioned it the past few weeks is that this sudden fluster of hers is kind of unexpected and out of character, at this point for her character. With everything she's done it's a little hard to believe she'll start questioning it now because of Morgan, especially after she has seen that justifiably Morgan's own ways aren't good for this world.
I never get this. The fact we saw her keep a list of how many she killed proves that Morgan didn't JUST change her, she's been keeping tally of what she's done for a long time. And then the fact she just faced her reflection in a life-or-death situation not long ago also gets to her.
Really, Carol's arc has been akin to the super-anime-characters that people hate so much, She became the infallible super-woman who always had a plan, was always ahead of her adversaries, and whom we always root for, no matter what she does. (I still think her messing with Rick's GF's son was too far.)
Morgan might have initiated this turn of character for the audience, but someone with her "power" has to face herself sometime.
Her (and the group overall) have short-sighted methodology of simply killing everything that disagrees with them, so they can stay safe. That can't proceed for long. Eventually, it'll either eat them from the outside (people will seek vengeance, just like they often do, and actually win), or the inside (they'll break from doing such inhumane things constantly.)