I'm in no position to offer advice on the OM, or how you should feel about her, but there is a quote from "Orange is the new black" that I refer to whenever the OW comes to my mind, and it's so bad it's actually really good... So here it comes, (please don't laugh):
"I'm a garden rose, she is a weed"
Surely the context in the series was different, and I might have paraphrased it a little, but it is becoming my motto. Honestly there is loads of wisdom coming from that series
"There's nothing sadder than a conman conning himself"
“There is freedom waiting for you, On the breezes of the sky, And you ask "What if I fall?" Oh but my darling, What if you fly?”