1. If your boyfriend is constantly jealous, he may be an insecure man.2. She feels insecure about her body because she used to be overweight and her family made fun of her for it.3. I feel self conscious about my big black birth mark on my face.4. She has an inferiority complex about her small chest.5. Sometimes people say that someone has an inferiority complex when they observe behavior that's informed by a feeling of inadequacy.
 insecure self conscious inferiority complexinsecure 指對自己沒有安全感，也就是沒自信或自卑的意思。例如 an insecure boyfriend 指 "沒自信的男朋友"，此人認為自己常常比不上其他男生，所以常常嫉妒他人。相反的，"你給我安全感" 就可以說:You give me security.I feel safe with you.self conscious 就是指對自己的某個方面感到自卑，通常是外表inferiority complex = 自卑感，認為自己用處不大，或懷疑自己的能力
The thesis of your essay is completely obsured by your flowery language.