I don't see how they can 'resolve' this storyline without a WP appearance, for better or for worse. That said, a divorce is not an option for me. I think both characters, not just Grissom, would look bad in a break-up scenario. The intrigue of GSR has always been the fact that it's a unique love story between unique characters. Their marriage was expected to be unconventional, and in T2MG we saw that. They have survived a lot of things individually and as a couple. This LDR angst is so contrived and OOC, it makes my head hurt. The bottom line for me is to keep them together at all cost, with or without WP. The writers just need to think outside the box.