Social Media and Relationships?

I have been dating a guy for a while now, he has 5,000 friends on fb. He makes posts everyday and many 90% of his friends on fb are women. He made a post and this same woman always comments on his posts. So I asked him simply who she was? He then got so upset at me raised his voice and said I am wrong for asking him. He says that everytime he gets in a relationship with a woman they always think he is doing something on social media. Wondering if I am in the wrong for asking? Has anyone else had any issues with social media and their relationship? Also I been thinking about just deleting him and unfollowing him because it is making us argue continuously over social media.

Social Media and Relationships?
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