I understand that, it was the same here when Joey showed up. Very much the same. Joey made friends with Oban first, then me, then actually had to be pushed away from the door every time we went in or out, he was so determined to come inside. My Itty Bitty Kitty was 18, very frail, on meds, and I did not think I wanted to chance an encounter, one that she would probably start, that would end with her being hurt. Joey made his move and got in anyway and has been in every night since. I slept downstairs to keep them apart and monitor things.