Quote villyforever55: Christine? Why would she even care? I don' get that angle.
Christine was livid when she found out what Phyllis did years ago(besides the whole LYING about being intimate & drugging DR to break up her marriage with a baby lie)and then Christine took Phyllis to court to get justice but the case was thrown out and Phyllis got off scott free for trying to KILL Christine and for leaving her & Paul for dead and not calling 911!
So, IMO Christine overheard Sharon's "confession" at Cassie's grave and she was the one who changed the letter!
Christine owes Phyllis some big time baby daddy KARMA for the lie that broke up her marriage and I would flove for her to be the one who dished it to Phyllis!
Remember, Sharon was off her meds and she could've easily seen Christine do it and mistaken Christine for herself!
Heck, even Phyllis has "mistaken" Christine for Sharon!
Christine owes Phyllis major payback and KARMA with a capital K!