First, let me extend our sympathetic feelings for the shock to you and your wife. Stroke charges in like a lightning bolt and can knock us out. We've been there, know what it's like; but, remarkably, are here to talk about it.
The great odds are that your wife will recover much of what seems lost. It takes time and patience. The brain needs to heal itself and compensate for itself. Your wife will return to you and you will both make discoveries of strengths within you that you never realized were there.
We are here to try and help you on the way with hope, with optimism, with endurance. Be there for your wife as she struggles to overcome what has struck her and, in turn, you.