First off, let me say that I have a good deal of experience with both the Navy and serious mental illness.
I have only done a quick read-through of this thread, and so may be missing some important things that have been said, but I want to get my thoughts down while they’re still fresh.
First off, Kate does have every reason in the world to be angry at Alex. He did not handle his problems well, and even knowing that’s often part of the presentation of serious depression doesn’t negate the hurt he’s dealt to those who love him.
But, now I think that Kate, too, is not handling things well. From what I’ve read the OP is only talking about what Kate said - not the OP’s impression of why she said it. To be blunt, caring for someone who is suicidal, or borderline suicidal, is exhausting. Phsycially, mentally, and emotionally.
I’m going to guess that Kate has seen that chasm opening up in front of her, and recognized she can not do that. And that’s not something I’m going to blame anyone for admitting to themselves.
But her way of dealing with that is that she’s denying the whole issue, and trying to make Alex deny his problems. Which makes the OP’s questions all the more germane - has she realized that if Alex kept going on as he had been before the attempt that he would repeat that attempt? She may not have thought that through. Not many people like thinking about things like that.
It’s going to sound cold and callous, though - I wouldn’t think that Kate is a heartless pogrocket for making an honest assessment of her ability to help someone through this. I might think she’s a bit of a coward to make that assessment without even trying, but that’s not quite the same thing.
I do think she has started going about this, if that’s her goal, in a particularly heartless way. If this is a deal-breaker for her, that’s not wrong. But admit it up front, and explain it to Alex. Lying to spare someone hurt only makes things worse in the long run.
Actually, at this point, it’s only been a few weeks. I don’t think that the Navy has any choice but to see whether Alex’ situation is treatable before they decide whether to keep him in the ranks, or not.
I am most emphatically not a military lawyer, but my impression is that if the Navy were to choose to release this man from his contract the easiest way for them to do that would be with a Medical discharge, and an Other Than Honorable service characterization. Per the OP, it could be claimed that this man came into the service with his mental illnesses in full bloom, and he would have made the attempt anyways. Which the military has used, in the past, to refuse veteran’s benefits to servicemembers.
Without Veteran’s benefits, if the Navy dumps Alex onto the streets, he’ll be an unemployed and uninsured kid. And, speaking from experience of having a work record that shouts “Hey something’s fishy with these employment history dates!” he’ll be effectively unemployable.
Which is going to leave him in an even worse spot than if the Navy keeps treating him in the base hospital.
I have no idea whether Alex will be suitable for the needs of the Navy, but the Navy IMNSHO does have a moral obligation to try to do what it can for him, now.
SpazCat, please keep trying to be friends with both Kate and Alex. They both need a good friend, now.
(But don’t let yourself get sick trying to care for either of them.)
BTW, having been in a somewhat stressful Navy training program, can I ask whether Alex was signed up for the Nuke power program?