Try and keep a positive vibe, kids feed off vibes, you're probably exhausted when you get her up at 7 and she probably feeds off that negative vibe and becomes negative herself.

As for waking up, mine isn't as old as yours so I cant help too much but there are dog gates similar to baby gates but taller maybe put one on her door, when she wakes go to the gate give her a hug, if she walked ro the hate herself she can walk back, each time go to the gate and make it very clear you're not entering, no drinks, no snacks, no benefit to waking up. ? No talking if possible. I know she'll probably cry and that makes you anxious about your husband that's exactly how I feel I'd rather do whatever my LO wants if it means he stops crying and foesnr wake my OH.

Night light? Cuddly toy? Spray your perfume on her bed so she can smell you ir give her something of yours to take to bed?