NEED ADVICE

my boyfriend and I are both incoming college freshmen this year. he's not the type naman to entertain girls. he's very loyal and keeps his eyes only to me. but I can't help but get worried about the possibilities that could happen, lalo na sa college. nasanay na akong makita siya palagi sa classroom kasi nga magkaklase kami since grade 7. and medyo naninibago dahil magkaiba na kami ng college program meaning hindi ko na siya makikita lagi. our school is also known for having ATTRACTIVE girls among all schools in our city kaya parang big deal din 'yan sakin. this is making me sick because na iinsecure ako kahit ilang beses na nya akong binibigyan ng assurance patungkol dito. am I a bad girlfriend? p.s: kaya ako kinakabahan because all throughout our highschool journey as couple, andami na talangang nag dumadamoves sa kanya kahit alam nilang may girlfriend siya. mapa-babae man o bakla. (yes, he is THAT kind of attractive. campus crush pa nga)