I'm engaged and we're trying to sort out where we're gonna live long term
My DP is perfectly content to sell his marital home and for us buy a new house
Money isn't an issue for us but it will mean upheaval for his children
DP's former wife moved out six years ago, their time in the home wasn't particularly harmonious but they did buy it as their forever home
Finances are sorted. He bought her out
The house is beautiful
Me and her are civil but will never be friends
Am I selfish for wanting to move and start afresh? Or am I just a silly cow for not wanting to live in "her" home? 
I feel like selling and buying is such a big thing just to calm my feelings
I feel guilty, even though DP is happy enough to do whatever to make me okay