isn't there some state that considers BTC as property?
And in General, it is better not to divorce (this wish mean to look for the person with whom you will definitely not divorce)
there are just instances that married people fall out of love. or having problems especially when one party wants to have a kid and other can't produce. i don't know if its a ground for divorce but s/he will really think he wasted his time when s/he could have kids to other partner. so before the sperm counts gets lower, better decide.
just give what your wife deserves so she can go on as well. you can earn your BTC again.
It seems to me that it is time to change the system - and not to give the 50% of your wealth to your wife, but to give these 50% in favor of their child (if he remains with his wife). I would not want my child to be raised by a other man and I would not want him to watch as his mother tries to find (if she is looking for) a new man with all the resulting injuries.