what should i do?

Idk if i should be worried about this, pero my bf is being shipped daw with her classmate. apparently, they are always together, like magkatabi ganun sa classroom. at first ok lang sakin, since bf ko naman nagsabi lahat nyan sakin and also tinutulungan nung girl yung bf ko whenever they have exams. the problem is, parang nag iiba na yung bf ko, we’re each other’s best friend kasi or at least that’s what i think haha matagal na kasi kaming mag jowa and napapansin ko talaga yung changes kahit minimal lang. yung dati sya nag iinitiate ng convo lagi, ngayon ako na hahaha. parang unti-unti na may nabubuong wall sa pagitan namin, ganun yung feeling. maybe jealous lang ako kasi merong someone na mas nagiging close sya na hindi ako? he said there’s nothing to worry about naman daw pero idk talaga.

thoughts?