We don't know about that.
Many will have just to agree with him about whatever he thinks is best for him. He can have another match if he wants to but it's not anymore with Inoue.
He can match with other boxers that he hasn't taken yet and I guess that's where he should focus first before aiming for someone like Inoue again.
I think Donaire has been discouraged to continue his boxing journey after having consistent Lost in the ring which I think is normal. If he hasn't won against Inoue, I don't think he could still beat him for the 3rd time. If he will still have another fight, it should be with other boxers for him to prove himself in the ring again. Donaire only needs rest but if he wants to quit, it would be better if he'll leave a remarkable memory on the boxing industry by having a good last match.
IMHO, there's no way that he'll be given a 3rd time of chance to beat Inoue. That's already too much and as a professional, I'm sure they also have some sort of delicate that they shouldn't be bitter and accept the decision.
It's okay to continue.
But, not anymore with Inoue and just accept that he's stronger than him and that's it. Move forward to the next match that he's looking for.