Hope is a very tricky thing, and no one can tell you if and when to give it up. That's completely up to you. If everyone tells you it's too late, but you still have hope (even if you don't understand why), hold on to that hope.
But also be smart. Look out for yourself. Don't let your hope blind you to your sitch.
You deserve to know about the A, but you may never get an answer. I know that hurts. But there may come a time where you have to give up trying to find out, to save your sanity.
Me-47,XW-43 S13,S16 M:18 BD:4-23-17 W filed:7-17-17 (5 months of in-house separation hell) W moved out:1-6-18 D granted:2-15-18 Decree signed:3-29-18