What it means if he is still following his ex's instragram,Facebook, twitter? 10pts?

[Annie]

My crush broke up with his ex 6 months ago.
His ex unfollower all of his social media accounts. However, he is still following her Facebook, twitter and instragram.

His ex is following his sister's instragram. Today, his sister posted the picture of him and her together in the Christmas party. I saw his ex liked the picture.
She also liked other picture of his sister with him.

My question is:
Does he still like his ex if he is still following her social media accounts?

[Jason]

Means absolutely nothing its just social networking

[â™› Snow Lover â™›]

i don't think it means anything, maybe his ex is friend with his sis?