Re: so you dont love your wife anymore
this was exactly my supervisor's life, right down to the two kids.
so what did he do? had a string of affairs and eventually divorced his wife and married the last one he was having an affair with.
he says he's happy and that life is great but we all know the truth. his lifestyle went from stable but boring to completely hedonistic. he doesn't believe in anything. he might not be having affairs anymore but he still lies to his wife and feels suffocated by her but in a different way to his first wife. all those days he doesn't turn up at work because he's 'under the weather', we all know it's because he's too depressed to face people.
I think, if you're suffocated "and you feel like you are dying everyday", the problem is much bigger than being in a marriage with someone you don't have those strong feelings anymore.