This is incredible, I am especially captivated by the in-depth sincerity you managed to hold on to within a mere three lines and a handful of words. Because GB mentioned what this reminds them of, I want to point out it reminds me of Speak by Laurie halse Anderson.
'The silent treatment' this was taught to me at a young age. Passive aggressive behaviour is far more damaging than verbal aggression. The later is like a physical punch in the stomach; a blow that will most likely fade. The former, like ingesting poison, a slow lingering torture that can cause, as you state ' her love to slowly die'
The sinister feeling in this poem highlights that resolution is the answer, otherwise there are only losers.