<human>: I've had my 5 year old cat since he was a kitten. He's the sweetest cat and my best friend. When I'm home he is on my lap constantly, or following me around at my heels.

I've always had roommates that had cats and he liked having the other cats to play with. This past October, however, he and I moved into a solo apartment and I could tell he was getting lonely and depressed from being left home alone all day when I was at work.

So…I got a female kitten! She was also very sweet and affectionate and I brought her home yesterday. Unfortunately, I wasn't prepared for how quickly this new kitten would decide that I was her "mom" too. When I was at work I kept them separated in different halves of the house. When I got home, I tried to take shifts, going back and forth between the rooms and spending one-on-one time with each cat. I did this for a few hours.

Whichever cat I was not spending time with would sit by the door and *cry the entire time* until it became his/her turn. Then it was the *other* cat's turn to sit and cry non-stop.

Emotionally exhausted from all this cat-crying, I opened the door and introduced them. Kitten was all "Hi big cat! Nice to meet you!" My older cat hissed and ran away terrified. The rest of the evening, kitten ignored older cat and did all the things my older cat usually does: followed at my heels, jumped on my lap the second I sat down, etc, all while my older cat watched from a corner, seemingly both terrified and feeling replaced.

I tried to get them to play together with older cat's favorite toys. Kitten (who is clearly a complete kitten anomaly) was totally uninterested in playing and just wanted to be held constantly. Older cat played for like two seconds and then hissed and glared at me like, "I refuse to engage in laser-pointer games with *that creature*".

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: I'm feeling very stressed out. Today when I left for work, I had *two* cats crying instead of one. Please reddit, I need advice and/or reassurance!