My boyfriend has a female friend he tells me not to worry about but I have a feeling he might be into her?

my boyfriend has a female friend that’s a really dear friend to him. they used to work together and spend A LOT of time together even after work. Although he never admitted liking her to me, many of his former colleagues say they thought he was into her since he was always very affectionate and all over her in the work place. He also has loads of posts with pictures of her on his social media and only one picture of me. He always says how much she changed him as a person for the better, he still keeps seeing her regularly and always says how amazing she is. our relationship seems to be going great and we feel in love (although we’re together only 6 months..) and he tells me she’s just a friend I can’t help but worry about it a little.. not to mention the girl is gorgeous, smart and fun to be around. What do you guys think, is it possible he has feelings for her that he’s not telling me about?
My boyfriend has a female friend he tells me not to worry about but I have a feeling he might be into her?
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