Anybody got any tips on this?

The good thing is that you are not close to her. Its good thatyou are thinking of your wife and children. I think alot of married people go through this. Its normal to have crushes after marriage but thats all it is. It wouldnt be right to pursue the situation. Light flirting is common but don't go beyond that, there is a very fine line. Your family would be destroyed, your wife would be heartbroken, your kids would consider you to be the enemy for many years and would let your decision to cheat follow them also into their own marriages. I went through that as a child with my father. I feel that I can't even trust my own husband and have suffered through depression. Think of how your choices today can affect your family's future. Its not worth it.