What makes you jealous?

I get jealous when I see happy couples, people with cute little starter homes, and I also get jealous (lately) of people with adorable redheaded baby girls. I'm divorced from my first husband, s/o and I are living with his parents, he's a redhead and I always wanted us to have a little girl together but we have 3 blond boys instead.

I become jealous when I see somebody enjoying forthemselves a lot.