claiming college going daughter as dependent when "married filing seperately"

My Filing Status has been "Married Filing Seperately" for the past few years. My spouse has been claiming my Daughter as a dependent the prior years as She lived with her. However in the year 2021, Daughter turned 18 and moved out and started going to college. I have paid the entirety of her college fees as well as a majority of her living expenses incurred when She was living at home with my spouse prior to going to college in Fall 2021.
I have 2 questions:
1. Can I claim my Daughter as a dependent ?
2. can I get a tax deduction for the college expenses (tuition and board) I paid for her in 2021 ?

 

Thank You!

Thanks for taking the time to answer my questions.