Nursing home called to let me know that my dad has taken up a relationship with a female patient. Anyone deal with this before?

Finally after 6 months we got my dad close to all of us in a fantastic nursing home, smaller in size and he has never looked better.
I got an alarming call today explaining now they will be moving him to a private room on another floor as he has been inseparable with another FEMALE patient ...kissing, holding hands ect. When it was brought to their attention or his, he slammed his door ect.
While I am beyond heartbroken for him I do understand because of cognitive issues this may not be appropriate!!!
Has anyone ever dealt with this...??? I’m so sad for him and embarrassed as he really doesn’t understand being separated ect. I’m also worried, what if they can’t keep him?
Any advice or thoughts I’d love to hear. I was so happy visits were beginning next weeek here in Vermont, dining room, entertainment ect..he is every workers favorite ...thanks everyone ...just when I had hoped things were going good for once for him..now what?