Is it okay if my boyfriend snaps his girl classmate?

Me and my boyfriend have been together for almost a year. I love him with all my heart and he loves me too, he tells me everyday and is the sweetest person ever…We recently went long distance (sort of) because he started military school in another city…He has only 1 girl in his class and has started to communicate with her more (added on snap, instagram etc) he has told me they are only friends and sees her as the other dudes and snap mostly about school related things and their mutual classmates (etc when they all go to camp). He also once liked her story (about a field camp they went to and i told him it can send a wrong message if he likes her storys and he told me he really didn’t know and promised he wouldn’t do it again and he hasn’t). She knows about me and how much he loves me but it still makes me a little uncomortable because sometimes they can talk about unnecessary stuff or carry the conversation on longer than it has to…I told him how girls can take it and he told me he didn’t know girls can take it that way and assured me he doesn’t see her that way at all…Yes i am a little insecure because im not comortable with how i look (body etc) so it makes it a little harder i also overthink a lotttt plus the added distance doesn’t help also…i don’t want to restrict him because i usually haven’t been very jealous person in the past but this makes me uncomfortable…we have also talked about it and he told me he only sees her as a classmate…(he also HATES cheating so i don’t think he would do that, its that he is such a gentelman and a little oblivious as he doesn’t notice when somebody likes him etc).. Please tell me if i should worry or am i just so dumb and i just need to work on me and try to adjust to the long distance?

Updates
1 y
We have also had multiple conversations about it and he told me he understands it can bother me but because they are friends and colleagues at the same time he still has to communicate on some level with her…note: when he is with me he does send snaps about me too so she knows about me 100%.
Is it okay if my boyfriend snaps his girl classmate?
Post Opinion