How do i know if my boyfriend really loves/cares for me?

Me and my boyfriend been going out for 4months, we had alot of problems before but we got over them and everytime he sees me in halls in school he'll walk to me and hold me nd im a cheerleader nd his a football player so we see each other after practice nd he texts me everyday nd he said he wants to buy me stuff but i dont want him too, nd everytime a guy talks to me he would curse them out or if they touch me or talk about me he always willing to fight them nd he calls me his lil angel and his wifey