I work outside the home about 30hrs/wk. My MIL stays with my 18 month old son while I’m at work, an arrangement we’ve had for over a year. Over the past couple of weeks, my son has started crying when the doorbell rings in the mornings (signalling her arrival), which I understand because he doesn’t want me to leave, and associates her arrival with my departure. He’s easily consoled – we usually read “one last book” before I go, to help him transition. However, he will also occasionally cry after I come home. Then he runs to me and will relax after we sit and chat and snuggle as he cries for a few minutes. Never long (I’m good at distractions), just a couple of minutes. Why the tears at my return?