Da2 isabela leaving because of low friendship, anyway to cheat her back on xbox?

Spoilers obviously.

Im so irritated right now. Ive got 38 hours in the game and I just finished act 2 to discover that whether you tell isabela to keep the book or not she wont return to ur party if your relationship sucks. My character aligns with isabela well, I just didnt bring her on alot of missions in act 1. If I had known to prioritise it I would have and it wouldnt of even been hard. If I was playing on pc I would just load a save prior to the thief mission and get a mod to increase her friendship but im playing on my xbox. The farthest I can go back is right before act 2 where most of the missions are complete. I would legit replay all of act 2 to keep her in my party but I genuinely dont know if it would be enough to get her to 50% cuz shes a little in the red. So I would be replaying over 20 hours to maybe not even reach the required points.

Theres no way to get her back is there?