Hi
@pumpkin31, welcome to the forum. I'm very sorry to hear about your situation, it must be absolutely soul-destroying not to be able to visit your husband. Do you have any communication with him (e.g. phone, skype, sending him a letter etc.)?
When my Dad went into residential care after 15 years of home care his mobility deteriorated, but it was already on a downward curve (hence his admission) and his dementia became much worse too, again already on a downward curve, which was why he had gone into care. My Mum really struggled as she wanted him home after caring for him for many years but his needs were too high, it had actually made her quite poorly too which she could not see herself (there was no way she could have cared for him at home any more). I don't know what the circumstances were that resulted in your husband needing residential care but I'm guessing the situation became unmanageable for you as his condition deteriorated (which is natural). It may be that his condition is progressing and he would be in the same situation if he was still at home.
However, if you are concerned about your Husband's healthcare in the Nursing Home then perhaps speak to the GP to get her/his perspective? Perhaps speak to the Social Work Team (assuming your husband has been placed in the Nursing home) and tell them of your concerns to.
I wish you all the best. Keep posting, I'm sure the good folk on the forum will do our best to help you in any little way we can.