Dcat is about 13-14 and loves my DH more than anyone else. He has always cried when he goes out at odd times and clearly favours him. In the last 6 months he cries like this when DH is in the house, as if he's forgotten where he is. Is he getting senile? I don't think it's his hearing because he can hear DH walking up the garden path etc and rushes to greet him.