My question involves divorce in the State of: CA

My wife and I have been married for less than 6 months. She unfortunately had financial problems before our marriage and I loaned her a total of $10k. Unfortunately it does not look like things will work out, should we decide to divorce can i place a lawsuit against her? What about a lein on her house (she is on title only)?

Though I dont have a formal document (ie prommisory note, etc) I do have documentation (emails) stating that she acknowledges it was a loan and had every intention on paying me back once she got back on her feet. Would this hold in court? Or does the marriage automatically erase everything?