My boyfriend followed a random girl on ig how can I get over it?

He was in the military so no phones are allowed, he only uses his phone when he geta back home, so suddenly i see this girl in his likes list and he is in hers, literally every post, they like each other's everything. Confronted him and he said it was a random girl just for more likes and he unfollowed and removed her. Can't get over this, help?

My boyfriend followed a random girl on ig how can I get over it?
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