Questions: Guy's Behavior

My girlfriend has this “guy friend” we hang out with once in awhile. One night we were at his house and they were playing around and he kept tickling her stomach. Should I be concerned?

Like guys who cook and bake, decorate their apartments, make or repair stuff, read rather than clubbing, parties (of course with a job). Someone like Aiden from The Sex and the City. Somehow women always end up or love someone like Big more. Carrie once mentioned in SATC that women always end up cheating upon guys who are good on paper.

Like my math teacher is 23 and sooooo HOT, I would put that woman in my bed and bang her to heaven, Im 16 so i can't legally do that, Like what do they expect, I wish they lowered the age of consent, Its not like she "Raped" me i literally want to f*Ck her brains out, But if i tried, She would be accused of " raping a minor and traumatizing me" Like i understand if a woman or man trys to seduce a little boy or girl that is like 8- 14, that should be illegals, But im 16 i drive a truck and i have a job i literally have to shave and im 6ft 2 Teachers literally call me a young MAN, I feel like i should be able to have a girlfriend that is 18+ and sleep with her if we both give consent, Am i the only one that thinks the minimune age should be 16?