Sure it does. She had a problem (not being able to share her husband's interests), and instead of the obvious solution (pull him away from his interests) she found a novel and better one (join him in his interests). It's a perfect hack.
yeah, I agree with you- I wouldn't use the term 'hack' at all. Just that if we had to use the term, the least bastardized way of doing it would be to say that it was the relationship being modified, not his addiction. She literally did nothing about his addiction. I suppose you could say she "hacked" (again, disgusting choice of words) her PERCEPTION of his addiction...