OVERLY SENSITIVE MALES!!! AITA??

I dont see how u guys can juggle having a bf and having a REGULAR LIFE. I am only 14 years old I really don't think I'm ready but yk evb I know is in a relationship so I js thought I would give it a try. I started dating this guy he's just a year older so I expected some kind of maturity. Turns out I was WRONG. This guy is so overly sensitive ot drives me NUTS. You might think I'm being mean but put urself in my shoes Okay?? We are all in a group at my friends house and for some reason him and I are alone. Then out of nowhere he's like "I think i want to marry you" ??? My first thought was IS HE CRAZY?? I am only 14 and marriage is the last thing on my mind. I feel like this generation takes relationships too seriously. Everyone is DELUSIONAL AND THINKS ITS CUTE ???? ABSOLUTELY NOT. I'm going to graduate school, go to college for photography, focus on my career for at least a decade, then MAYBEEE if I'm feeling STUPID ill settle down at the age of 30 something. I say "I dont think we should be worried about things like that" and he gets MAD and ignores me for the rest of the day. Later when he finds out that I don't care if I'm ignored,  he texts me saying "Sorry about earlier. I'm sensitive ab things like that" so I BLOCK HIM