Oh my gosh, I feel for you right now. I unfortunately think your suspicions are right on target. You have to be sneeky yourself and get some evidence. Sometimes its the not knowing even when you feel like you don't want the truth. Men like this will deny even when you finally get your evidence in black and white. I just don't understand myself why they do this. But try to get the evidence you don't want to jepordize your family if you are wrong..