My boyfriend compliments my best friend way too much?

My boyfriend and i have been in a long distance relationship for 9 months althoug we are in a long distance relationship we fly every other month to see each other now my best friend for over 15 years she's on my afcebook page and my boyfriend always makes coments liek" wow she's gorgeous" or "she's beautiful" or other things like that which i find totally disrepectful but haven't said anything what should i do tell him or wait until he makes another comment?
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My boyfriend compliments my best friend way too much?
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