So theres no possibility of getting any bud from the worstening plant? It might not be matured THC to CBD's, but if anything make some simple hash, might end up being worth your time and a great addition to a bowl or three.....Would just hate to see your 2 months be a waist, much how i feel, just trying to salvage mine.
Lets see some pics of the good one, you mentioned she's following behind the other, are you sure its just not its natural P decline in the leaves or what.....