What's with Marley?

I really don't know what my aunt was up to tonight. First I was woken from my sleep by the sound of her crying quietly while she was reading. Louie and I were curious but we thought we had better leave her alone. The last time we tried to comfort her while she was watching TV about the earthquake victims, we ended up being furiously hugged and kissed.
Then just as I was drifting off to dreamland again, I was rudely woken up by her hugging me and kissing me and telling me how much she loves me. And then she went and did the same to Louie only he was already expecting her. And then she tried to squeeze all 3 of us onto the same bed with her.
I'm curious. What is it that she read in Marley & Me that can set off such strange behavior in a seemingly sane woman?