Quoting Mommy Pwnt Pwnt[A&T]:" Yesterday was our youngest's first birthday and we have had a very difficult time explaining to our 3.5yr ... [snip!] ... of her first birthday and her others but she is so hung up on brother having one and hers not being now. What would you do?"
Honestly? I'd mostly ignore it. There is a point where kids have to learn that it isn't always their turn. This is with toys, and with birthdays.
my daughter just had her 3rd birthday and her brothers 2nd is coming up. She knows it will be his birthday. If she gets jealous, we just explain again that it will be brothers day, and that she gets her day on her birthday. There are times kids will get upset, but sometimes it just has to do with "wanting" and jealousy, which does IMO need to be addressed.
There is a difference IMO between feeling jealous because you want everything and feeling replaced or neglected. Do you think she honestly feels neglected, or, my bet woudl be she's using the no one loves me stuff just to get what she wants (which is to be the center of attention).