Ronan, early in our relationship I asked Zhou about her last husband and why she divorced him, the answer I got then was " he is a bad man " and that was it, later after we were married for a while we were talking one night about every thing and nothing and she started to tell me that she divorced her last husband because he was to controling, mentally abuseive and he beat her almost every day for 3 years when she first got here with her daughter, can you belive the look I had on my face when she was finished her story, the look was sorrow but inside I was very angry, sorry, back to the point which is don't push it, she will tell you later or never, if never then it is not important to your relationship, JMHO>
good luck, best wishes and have a ball.