My ex dumped me 4 months ago. Between that time he blocked and unblocked me multiple times. Then a month ago I reached out to him we get into an argument he blocks me only on whatsapp. Then again after a week he unblocks me. Then 2 weeks ago I posted on whatsapp new status update he doesn't even open it and blocks me again, I am still blocked and it's only on whatsapp. He hasn't blocked me on social media. Does it mean he kept a window open for me? Why isn't he unblocking me on whatsapp? Or why don't he block me everywhere?