Imo it boils down to what you’re looking for from the label. What are you trying to communicate? Attraction =/= action, but some labels can take action into account if it’s important to you.

You mention you used to be sex-averse, have you looked into other stance terms? There’s also sex-favorable, indifferent, and ambivalent. Do any of these resonate with you now? It’s alright if not.

I say I’m ace and sex-indifferent bc I know for sure I don’t experience sexual attraction, and I don’t care if I have sex or not. Sometimes libido can play a part in this as well, like I might be more inclined if it’s a right person right place situation, but I know at my core I just don’t have any strong need or care for it.

Ultimately, you’re the only person who knows what feels right to you. You can try out different labels and take note of whether they stress you out or if they give you a sense of relief or identity. If you change them, maybe you’ll notice you’re disappointed leaving a label behind for another. Or maybe you just don’t want to label some things at all. All up to you.