E.V.
My son went through this same "phase" at this same age. I talked to some co-workers and they made me realize what I was doing. When I came home from work with my toddler from day care I immediately started making dinner, threw a load of laundry in the wash, and picked up toys from the day before. Once I stopped doing this things changed. I would walk in and sit down with my son to read a book (with extra snuggling) and then get him interested in a toy before starting my evening chores. It seems he just wanted some of my undivided attention after a full day of being seperated. Dinner was only ready 15 minutes later than usual and he was much happier. Hope this helps.