here are my personal thoughts. there is nothing wrong for you to love someone. loving someone is a nature, you can’t stop nature. I am loving two women at same time now. loving someone esle does not make you unfaithful to your wife, your action does. Is like having a sexual thought to a sexy woman you saw in movie, does that make you unfaithful? it only does when you treat your wife differently. you must know how to control your feeling. it is good that you have not done anything more than hugs and kiss to forehead. just Follow what your heart tells you. but don’t hurt your wife and Liz in the process. If Liz feel uncomfortable carry on like this, let her go, because you love them.