Of course I can understand why her saying that it would be "awhile" would be scary to you. But what I heard, and you probably didn't....is that there is hope. Her saying "awhile" means there's hope that yes, you will again have what you are looking for. She didn't say "that will never happen", she didn't say "I will never"....she said it will be awhile. Putting myself in her shoes, that's only reasonable.....right now she's feeling pretty betrayed, yet she still doesn't say "never".
I know you are scared about a great many things right now....so much is in the realm of the unknown for you....and the unknown (for me anyway) is one of the scariest places to be.
Try your best to deal with today, be the best husband and father you can be today...worry about tomorrow, tomorrow. IMPO when you start worrying about the "what if's" down the road tomorrow, next week, or next year then that drags you down when it comes to working on today. It's an easy pitfall to fall into.
You know....this may sound really silly to you, but honestly it works. When you catch yourself beginning to focus on the "what if's" here's a trick you can use, it's a trick I recommended to LFL and it's one I sometimes use myself...but it can work with your internal thought process as well.
When you catch yourself thinking about those "what if's" that drag you down or you start thinking about the glass half empty....mentally say "EDIT!" I mean it...literally say it to yourself, stop....and conciously find a way to put a more positive spin to it. If you are looking at the glass half empty....find a way to spin it to the glass half full, so you can see what you DO have.
I know it sounds hoakey.....but it does help. I can't promise it will work every time, and it does take some practice to start doing this.....but this is something I use quite a bit, in order not to say things I don't mean. When I've been down in the dumps in the past, or in a depression....it's also a tool I use to pull myself back up so I can keep going.
Who knows....it might work for you too, I sure hope it helps.