My son said he won't visit if I don't let him bring his dog

[Domestic1980]

Hi
My son lives 4 hours from us. ( he's 18)he works away from home 95% of the time.I have just looked after his dog for 3 weeks, which I offered. As he had work commitments.
But I hated it, I'm slightly allergic I had sore throat and had runny nose even allergy tablets didn't help and I just hated having the dog, the smell, the mess ect
When he came to collect the dog I told him I was happy that I could help him this time but I didn't enjoy it at all and that I don't want the dog in my house anymore....I said it nicely without a big fuss or anything and explained why.
He told me that it was fine but he wouldn't be able to come and see me anymore if he couldn't bring the dog.
Am I been unreasonable?

[hatedbythedailymail22]

@Bananaman123

I live alone and would be the same, if dog can’t go I wouldn’t visit. She is my shadow and wouldn’t cope well away from me for a long time and I don’t have money to get someone to look after her

You, like many, seem to have entirely missed the point.