But you are going to need more than positive feelings to get through this because those positive feelings are going to get hammered into the ground before it's all said and done.
I would caution you against strategies that are designed only to garner some kind of reaction from her - whether immediate or delayed. Your changes have to be for you or they won't be "changes" at all and even if they resulted in her returning fairly soon, you'd end up back here - I can almost promise you that.