Why does this guy keep sending snapchat vids of himself flexing?

So, this guy I recently added on snapchat about a week or two ago requested to be my friend on snapchat. I like making new friends and meeting new people, so I accepted his request. Since then, I haven't received a message from him. One day, he sent a video of himself flexing, what looks like could be, in the gym locker from the reflection. I sent a reply but he didn't respond. A few days later, he sent another one including his friend this time. Now, what I wanna know is, is he sending this for recognition and want to be noticed?

Why does this guy keep sending snapchat vids of himself flexing?
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