Is this Hoya (I think a crimson queen) vine doomed? I got the plant and it was just the cuppy green leaves and the previous owner said it hadn't grown at all for her. So I thought it was good when it started growing a lot and shooting out the more oblong leaves, but it almost immediately only shot out white leaves. I thought they would darken, but they don't seem to be. Do I cut the vines with all white/pink leaves? What kind of light or care does it need?