So, this is cheesy, but I was reading through book #1 last night before I printed out a copy for someone. I've read it probably 50 times (maybe more), but every time I take a little break from it and read it again with fresh eyes, I fall in love with my characters all over again. I laugh for them, and cry for them, feel their pain and their heartbreak. And I find myself reading on to make sure everything turns out all right for them in the end, even though I (obviously) know exactly how it ends. I love these characters, I love their story, and I love watching them fall in love.
Also? I'm 48,000 words into book #2. That's more than halfway through! And guess what - I love these characters too. There's something magical about creating these people, breathing life into them, giving them nearly insurmountable obstacles to overcome, then helping them triumph and of course...fall in love.