You need to stay away from this woman...if you love your wife, stay away from this friend of yours. I don't know if you could ever go back to just being friends. There will always be a little something in the back of your mind. I have been married for 14 years and have developed feelings like this for other ppl - I become obsessed with ppl that are nice to me
Have no doubt, if you act on these feelings it WILL change you and your marriage forever and by the sounds of it, you love your wife and want to stay with her so pls don't play with fire - You WILL get burnt