T, I hope that you and your family are feeling better today.
Stay the course and continue as you have been. When your wife is ready to discuss having sexual relations w/you, she will and I would keep flirting to a bare minium for now. Right now, she's still navigating the fog just a bit and those warm and fuzzy feelings are slowly thawing out. Your wife is baking up nicely and you do not want to start making flirty gestures towards her when she's still fragile. Remember, I mentioned that this is the hardest part of the journey? It's where you are going to have to be very patient and trust me, you will know when she's ready to return to the marriage full swing.
I, like rH, think that putting something in her inbox every day is a great way to have her begin her day and she does look forward to those missives. Humor will carry you a long way w/her and she feels comfortable w/that for now. Again, if you opt to try flirting, keep it very simple as you do not want her to scurry back to the rabbit hole.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.