Um, I personally know someone whose Moon progressed from Aries to Taurus in the middle of our relationship. And I think the reputation of being "calm, and steady" for me, has seemed more like emotional laziness.
Her Moon in Aries would put up a good fight to keep a good thing going, but this Moon in fixed Taurus, just wants to sit there and let everyone do the work.Very stubborn emotionally. I see the vanity of Venus here,(she's 5'4 and wants to model now) and her materialism rearing its ugly head here. She has Mars natally in Taurus, so she's driven to work to be financially stable for now, but deep down, she just wants to be lazy and have a rich man take care of her.
Just wanted to say this, maybe the Moon exalts her self in Taurus? Because I thought this progression would be a good thing, making her emotionally stable, but it's actually made her emotionally stagnant, hardheaded and stubborn.
Albeit, I am a Leo Rising and her Mars in Taurus squares my Mars in Leo. Also, her Moon is conjuncting my natal Chiron, so I guess this is just opening up old wounds for me, sorry if my judgment seems a little harsh, but this what Im experiencing.