Guys why did he unfriend me on Snapchat?

I barley post on snap chat, I posted one story today of my new car- first time in months he saw it immediately and 6 hours later unfriended me. I hadn’t messaged him in 3 weeks and we primarily would use snap chat to communicate. He’s still following me on instagram and we’ve previously slept together a few times throughout the year but have had a lot of contact in between.
Guys why did he unfriend me on Snapchat?
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