Our oldest cat died at the end of March, back in October we brought a kitten home. Older cat found it difficult dealing with the hyper ness of a young kitten and they would fight a lot even upto him passing so 5 months after we got kitten.
I think the kitten (8 months now) is missing company and someone to play with he's a lovely cat. Loves affection and cuddles but he's just not been himself this past month. Our older cat was quite grumpy and I think this is why he didn't like the kitten being around and had us and the house to himself for 2 years. I think it would be best to introduce a new kitten now whilst our existing one is still quite young and has only been on his own for a month.
My worry is I am back in the office, when we got the kitten I was home working so could slowly introduce them both. With him already being young is he likely to take to a new kitten easily?