Baldur's Gate 3

Similar to other people, I think you should own it. Try to think of it not as "I betrayed my character" but rather "my character gave in to temptation and regrets it but has to live with the consequences", then use that. Play the character as though they are unhappy with the changes, they regret it, but they must soldier on.

People aren't all perfect archetypes, and characters can have flaws and nuances. And the best part is, if your character up until now had no reason to make the choice you made, maybe it's time for an out of game flashback. Work backwards... what thing could have happened in their backstory that would explain why they made this seemingly incongruous choice? Why did this tempt them when so many other things did not, and why does this cause them so much shame now. That kind of stuff.

Or don't! Just some suggestions, since it sounds like you've got nothing to lose, may as well try some character development!

Real people also sometimes do stupid shit that seems to go against their nature. I'd keep playing. You could make your regret inform all your future decisions.

why not try and embrace it? this isn't the only run you will ever do. it might be interesting to see what you might do with the choices you've made.

just because you've made a choice that you must live with, let yourself live with it. try and make the best of it. or fight against it. this is a story that you've written from start to end. but you gotta allow it to run and end. ya know?

I think I know exactly what choice you are talking about. I felt the same way to a certain extent. Let me use a level one or two spell slot to cast a glamour or something.

HOWEVER: What you get out of it in my opinion is worth it 100% also if you are on Pc there is a mod that takes care of the main problem with this gift. It's the only mod I've got running at the moment.

What gift? Im struggling to think of anything at the end of act 2 that is given to Tav.

Edit: I thought some more on it, do you mean the astral gift? If thats the gift you took then you could play it like this: Emp used his persuasion to convince you to take the gift. You realized it was a trap and now you will use those powers to betray Emp. Free the person in the bubble and free yourself from the ghaik. You are restored to humanity if the BBEG dies. I tried to be mostly spoiler free in case you hadn't played through fully already.

Those outer ring powers are pretty good, it's worth saying. There's a good likelihood I'll make the same choice because honor run. I want to get the golden die and then I'll go back to roleplay runs.

Plus it's good to have things push me out of my comfort zone. I just finished act 2 and Thorm killed Jahira. It's a bummer to miss out on her storyline stuff, but that's something I'd never let stand if I could just reload so I'm in uncharted waters. I don't know what things will be different. I assume I'll never meet the big guy at a minimum. Maybe some sad dialog I'd never have experienced in A3. Maybe interactions with the Harpers will go differently.

I like the chaos that comes from consequences for impulsive decisions and randomness outside the players control. I've never let Isobel be taken - I'm way too good at that fight after like a dozen times - and if the dice went wildly against me I would be in uncharted territory which would be kinda exciting even though I would hate to let all of those individual storylines end on such an unhappy note. But that should just make me hate the Absolute even more, right?

What gift? Not getting what specific part you're talking about. Anyway, like other have said even a honor path of life will some mistakes during their life. You should move on with your playtrough.

There's a mod that can fix your appearance if it's the choice I'm thinking of.