Do Aquarians get possessive over people? Do they get jealous?

I noticed that although my Aquarius ex and another male friend of mine who is Aquarius detest talking and showing mushy stuff, they are quite possessive and jealous. I could sense it by looking in their eyes and at their posture. its kinda cute though, I like making relationships, romantic or friendships, with people who look out for me and who are protective of me. Aquarius people are like that.