Scarlet, not knowing the woman, it's tough to respond with much of anything. She might know/think that you have an extremely busy schedule and thus is waiting for you to offer up when your time is free rather than forcing you into something that might conflict with something else on your schedule.
I have a buddy I've known since we were 12, really good friends until sometime after he had his first boy. His priorities changed, as you'd expect, and I see him maybe once or twice a year now. When it comes to getting together, I let him make the first contact because I know he's run ragged with his three boys now, his job that has him on the road a fair amount, and his commitment to the volunteer fire department.