ground to make up for

Something the husband said when I told him how I looked like a boy before my boobs grew and no one here wants to tell me what it means.

Me: I looked like a boy. But now I don’t.
Him: No wonder you’re so proud of them. You have a lot of ground to make up for.

ground to make up for

Something the husband replied with when she said she looked like a boy before her boobs grew and no one here wants to tell her what it means.

Me: I looked like a boy, but now I don’t.
Him: No wonder you’re so proud of them now. You have a lot of ground to make up for.