As is, the relationship isn't really explained aside from "literal bomb feeding on magic". I'm personally very curious about how much of the truth he's telling. Some people think he's secretly evil, but that seems a bit too tacky
I think Gale is a bit overconfident (I think he was some sort of child prodigy, and maybe this got to his head), and he seems to be quite ambitious. This has led to reckless decisions in his past, and might lead to reckless decisions in his future. What he did to try to win back Mystra's affection was extremely dangerous - well, at least he seems to realize this now. But I am not sure if he has really learned his lesson from this: he is the only one in our group who does not approve if we reject Raphael's offer, because he thinks he could trick Raphael, since he is
only a cambion.
As for every companion, I can imagine different paths for Gale. I particularly like that aspect of our companions' character writing.
plot is how. I wouldn't overthink it too much.
But where's the fun in that?!
fair enough haha, I guess I don't like putting more thought into something than the writers did, but I get it. Ignore me, I'm just a debbie downer

Personally, I think the writers did put much thought into it, but even if they did not, we can still have a lot of fun here overthinking and overanalyzing everything
