At the moment I would say yes, and I feel lucky every day. Not trying to be cliched here, and I don't just mean having DH makes me feel lucky, but our 2 DDs too. I genuinly feel lucky so much of the time because I know anything can change, I've been through enough to know that and it does make me appreciate what I have.
If we're still together and happy in 50 years then the answer is an absolute yes and I think that will happen, but who knows for sure. . . ? If he left me in 6 months I'd be devestated, but I'd get on with my life, bring up my girls and may well in time meet someone else and fall in love all over again.
Sorry, just rambling now!