Agreed, because Andy was easy and non-confrontational, Ellen at times felt like she had settled, because the ever present intensity and spark wasn't there, but while that spark brings out passion, on the down side, it brought out in her the neediness as well.
She did admire Leo's independent spirit, something she was lacking when they were together and I think caused their breakup. Jump forward the years and now Ellen has a successful career and Leo is attracted and wants her. This time, Leo does not bring out her neediness, she has matured, but the old time intensity is back, something she doesn't share with Andy.
I could yammer on about this all night........gosh.