Yeah I know, I'm also struggling with her being online on Whatsapp and not replying to me. Again, it's so stupid (particularly as she uses Whatsapp to correspond with colleagues), but it drives me nuts.
I just need to stop thinking about it - went out last night to meet some old friends I hadn't seen in years for a drink, and it was ace just to get out of my head. Need to sort out a social week for myself next week!
Go to your privacy opttions and disable last seen and read rexiptes.
It blocks it for you too ao now you wont see if shes online