Yes, if she is willing to go to Retrouvaille, you should go. I have been to Retrouvaille myself, and have encouraged many other couples to go. The stories are always different, and there is no common element to who does well with Retrouvaille and who doesn't. I have seen couples who have called the police and pressed charges against each other succeed at Retrouvaille, and I have seen couples I thought had only minor problems fail. If she will go there is no reason not to.