My boyfriend has his ex girlfriend still on his social media and likes her pictures should I be worried or sad?

gegevill
My boyfriend has his ex still on Facebook I see her profile on my friends recommendation and I look on her profile and see that my boyfriend has been liking her stuff three days ago but tell me not to worry about her she just a memory do you think I should ask him about it or leave it alone
My boyfriend has his ex girlfriend still on his social media and likes her pictures should I be worried or sad?
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