JIM talk to her!!!! Tell her whats in your heart,tell her you need her(which you do even if you wont admit it).Cancer has taken enough from you already dont let it destroy this too. cancer is a sneaky beast as you know so dont put it off,do it now.Flowers,candy,begging ,whatever it takes let her know in real words how much you care and the rest will follow i am sure.
We all need love Jim and she has been through so much with you already.
I would give both my eyes to hear Robins voice and touch his hand just for a moment,dont blow it Jim while you still have the chance.

You may be a tough old boy but that doesm't mean you cant pull on your romantic softie hat and win her back.Its the time of year to be with those you love,so pull your finger out.

love and hugs liz