We're dealing with something new at our house . . . jealousy! Seriously! When Elsie was born Abigail was really just fine with it. She didn't regress in any way (that we could tell) and she was very gentle and loving to the baby.
Now that Elsie can crawl and stand up (not walk yet) and demand my attention, jealousy is abundant in our house. I just spent the last hour keeping my kids up before their nap by holding both of them in my lap.
If I just had just held one, the other would be crying, believe me.
I have been talking to Abigail about her emotions. I just told her that I love her and that even if she can't get the same kind of attention as Elsie (after all, Elsie is breastfeeding still) she was still a special girl. I told her this and she burst into tears. Poor thing.
I think some special one-on-one time is necessary after Elsie goes to bed at 7 pm!