Is my friend attracted to my boyfriend or is she just being friendly?

I’ve been with my boyfriend for almost 6 months now and I am starting to grow stronger feelings for him by the day. I introduced him to my sister and my best friend like a month ago. I started going over to his place more but with my best friend. She told me when she first met him he was hot and I said I know. This past two weeks she just seems to be looking at him a lot. Whenever he says something that doesn’t seem too funny she laughs at it. We were drinking together at his house a week ago and she said he was handsome and he said thank you. Tonight they just talked more and laughed a lot about random things and she said she wanted to spend almost a whole day with us 3 together, he said that sounds good and that he would cook for us and she said she’ll cook with him and said that she thinks they can be a great team and said she loves him like a friend. She even acts a bit goofy around him. Is she into him or just being friendly? I don’t know how to ask or to just let it go and see if anything more happens.
Is my friend attracted to my boyfriend or is she just being friendly?
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