Why do people constantly post things on social media? Are they seeking attention?

[Anthony]

I know this girl who I have always liked since we were kids and I feel it's been the same but she always retreats when things seem to move to the next level. She puts things on Facebook and Instagram that are obviously to get my attention. She's dating a jerk right now and she does nothing but put pics of them on there. My question is do people like her do that to make people think that they are happy? I feel that if a relationship was going well, pics would not have to be put up because there would be no time to even think of putting them up. Like maybe it's all a front that people do to cover their misery. What do you think?

[Softtouchmale]

Yes she wants everyone to pay attention to her, she's an attention wh*re.

People are sometimes exhibitionists. They crave attention to satisfy their inner insecurities.

[i + i]

"... that are obviously to get my attention..." --
Right, because no one else's attention matters,
only yours.