So why did they break up?

[pattyfan]

My niece asked me why Stevie and Lindsey broke up, and I realized that I never really knew why. Ditto for Christine and John. Or who broke up with whom. If this is common knowledge, then it's even more embarrassing since I consider myself to be somewhat of a fan. If this has been discussed to death, maybe someone can refer me to that discussion. Thanks.

Kevin