Is my boyfriends friend attracted to me? And what should I do?

For context my boyfriend is from a different country, where they speak a different language that I don't know and the only friends I have there are his for now. I'm also very shy and have a hard time talking in big groups. His friend keeps glancing at me often when we are out either just the three of us or in a bigger group, and every time we meet he makes an effort to talk to me or at least interact in some way, I consider him a great friend. His other friends don't do that and I have a hard time talking to them. I want to believe it's just my imagination but I've caught his gaze so many times now. I told my boyfriend that and gave him examples and he didn't really react much other than become thoughtful for a few hours and now it's like I didn't even tell him. I really like the guy as a friend, do you think it would just pass eventually or maybe that he just feels bad for me for the lack of friends and that's why he does it?

Is my boyfriends friend attracted to me? And what should I do?
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