>>7882071shitty situation anon. i don't know what its like to be in love with multiple people at the same time so i know it might be confusing for you. as long as you haven't actually starting dating her or done anything physical with her i would assume your wife would actually be grateful that you told her the truth that you caught feelings for another girl. if you are falling OUT of love (with your wife), that is another story.
hope it is resolved with a satisfactory outcome