I've seen this video before. I thought it was horrible the first time I saw it and I still think it is horrible with horrible acting by a bunch of fans.
I think it would have been possible for the shooting to still have happened if it was a boy and a girl. However, I think that would be very unlikely. How many school shootings have happened where a girl was involved? And yes, I agree with you that if either were to do it with a girl it would have been Dylan. But, then again, if Dylan found his "true love" maybe he never would have wanted to do the shooting at all? But who knows, when you start asking questions like this one, there are a million different scenarios that could have happened at Columbine.
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"I’ll see you in Heaven if you make the list"
Zachary Patrick Bowen (March 7, 1995-November 5, 2021).
I miss you little brother.