Be cordial. It's the mature solution. Costs nothing and makes it easy at family get togethers. It's good in the long run for your emotional wellbeing. Do not take any in laws into your trust…word gets back…..twisted. do not complain to hubby cos honestly , blood is thicker than water. He will sit on the fence in order to keep the peace. Keep family meetings to the minimum…short and sweet and talk about the weather.