Just beat the elite 4 and went through the Landan/May dialogue. Now what?
Also this may just be my opinion but Main Char.(I called him Dante) seems a little quick to turn on Glias when Chloe starts talking shit. If someone i'd never met and was convinced was kind of a jerk told me someone i didn't think was a jerk was the bad guy i'd be suspicious of the information. Yup.
I am weird in that i have a headcanon for everything i play. So i played Dante as having at some point(possibly in his past, or just at first sight in rustboro) fallen in love with him. He went with Chloe to take out the horsemen and spy on her a bit. He was, needless to say, heartbroken later, but still wants to find Glias.
In lieu of a proper ending, since i have no clue what to do now, I choose to think he's looking for Glias, and that when he finds him Meteor is naturally pissed and wants to off him, but Dante makes up some bullshit statement about remembering Glias from before, convinced they're his real memories this time, and that Glias was not always an asshole and that he wants to take responsibility for him.
Just my headcanon.