boyfriend is traveling and I'm feeling anxious 😬

So this summer my boyfriend will be traveling on his own to Thailand before we start college. He'll be away for about two weeks and I'm gonna miss him a lot. I'm just worried about him flirting with girls there or vice versa. I fully trust him and I already told him about my concerns and he said he's going there for sightseeing and not to stare at girls. I'm feeling jealous over nothing but I can't help it. How should I feel about this?