Yeah, I feel like unless she contacted Harry and he managed to pick her up before she changed her mind, she would have probably gone back to Ralph after a couple of hours of realizing she has no money, no prospects and her entire family probably hates her at this point.
Even if he did manage to get her in time, she seems stupid enough to go back to Ralph anyway, even after being back home with her family.
I guess it all depends what started the argument. The only thing I can think of is the Alanna tweets/Ralph claiming he had sex with her. It seems like the only thing that could get to her (someone picking her sister over her once again), since all the shit Ralph's done so far (hookers, cheating even when she allows him to have sex with other women, rape, abuse, isolating her, moving them to a third world country to escape consequences. his addictions, fighting with her family, not giving a shit about her or the baby, etc.) hasn't managed to wake her up. Not even having a kid and that kid living in a horrible environment.
Who knows, I know it will eventually come out since none of these people can help themselves, and from all the leaked texts it's not the first time she has thought about leaving Ralph, and even if she comes back, it will absolutely happen again. I'm sure we'll hear about it at some point.
I am curious what the fuck Ralph is doing though, supposedly alone in NY after his new wife left him, his first course of action would be to drink more/down more Xanax and go on the offensive, but there are no tweets, streams, nothing. I hope he doesn't end up accidentally OD'ing when trying to drown his sorrows.