It melts and breaks my heart at the same time...

This morning I was leaving to go to work. I went to give Ariella a kiss and to tell her to have a good day. She held her arms up, reaching out to me. It melted my heart. I picked her up and gave her a great big hug. Then, I set her back down (she had been sitting, playing with a toy with Abuela). I told her to have a good day and turned and left. It made it so hard to leave, though. I keep picturing her with her arms stretched out to me. Sigh... This is definitely one of the hard parts about being a working parent.