Good idea with the travel. I would say invite her, but go regardless if she wants to go. This is a good GAL option for you. Just keep finding things to do with your kids.
At some point your W may want to push more for S. But until then keep up the GAL. Just keep busy and cram in as much activities as you can right now.
Me late 30's W mid 30's T 15, M 10 S4, S7 ILYBNILWY June 2015 In house S July 2015 W rings off Oct 2015 My ring off Feb 2015 Separate houses June 2016