Sounds like you had an awesome trip! I've never been to Montreal, but I would LOVE to visit, I've heard it's wonderful. I live in the states (Michigan - right across the river from Windsor actually) and I took french classes from 7th-12th grade, even when on a trip to France for 2 weeks my last year in high school. It was amazing. Trying to convince my husband to go back with me, I would love to enjoy Paris at my own pace and with the love of my life =) You're so right though about speaking the language, if you don't use it, you lose it. I can still read it pretty well, and I was always great at writing it, but my vocabulary is horrid.. I mix up words and stuff. There's a friend that I work with who is pretty fluent, he's taken college courses quite recently and so he tries to get me to talk to him in French when we can.. It's kinda fun sometimes, especially if we're talking about something we don't want anyone else listening in on.. and it keeps it fresh.
Ahh, reminiscing =) I love the French language and culture. I think you definitely should work on moving if you two are serious. Having a good support system, I think, plays a huge part in keeping our health in check. Good luck with your disability application and all that. Keep us posted.
P.S. If you do have pics of Montreal that you can load, I'd love to see them!