Well first of all you got to be smart! And have a plan on how to resolve this that will be up to you. But from experience my mother married a man that hated me, Very Selfish of her and it did ruin years of my life. But you have a kid by the other momma too, hmm What really works only you would best know but maybe just explain to your wife that your kids are only little ounce and then they will grow up, so it wont always be like this. Assure your wife that u love her the most! Shes insecure sounds like you have to boost her confidence. But you have to love your kids first cus you cant exspect the second wife to love them for you, they only have one father and thats You!
Chad P:S If that dont work, Try a TRIAL SEPARATION to show her you mean Business! Love your kids man, dont be a bad dad for any reason.