hi please help me im looking for a manwha where the mc is rich and hes really handsome an...

hi please help me im looking for a manwha where the mc is rich and hes really handsome and there was a teacher obsessed with the mc but a new kid joined and he really liked the mc and so he would try to talk to him i think i dont remember but later on in the story he gets ditched by the mc i forgot how and the guy joins the militery ir something then comes back and the mc has blonde hair and the other guy had like black hair and the mc also had a relationship with this older guy with black hair PLS IDK PLS HELP ME im praying