Another great song by Jilly from Philly... Although we move on in our relationships, our old relationships (our past) may sometimes cross our mind. I'm a firm believer that nobody or nothing is all bad. So whatever the bad was in the old relationship, it is easy to forget the bad, and remember the good. So in saying that "you just running cross my mind," Jill is saying that she thought about the old (the good of the old). However, by the end of the song, she is saying that although those things were good, the reality is that the relationship was no longer good and she is glad that she is out of it.
Another great song by Jilly from Philly... Although we move on in our relationships, our old relationships (our past) may sometimes cross our mind. I'm a firm believer that nobody or nothing is all bad. So whatever the bad was in the old relationship, it is easy to forget the bad, and remember the good. So in saying that "you just running cross my mind," Jill is saying that she thought about the old (the good of the old). However, by the end of the song, she is saying that although those things were good, the reality is that the relationship was no longer good and she is glad that she is out of it.