Why did he take off his shirt?

ok. so I was on one of my usual walks when this guy who I like and have been friends with was riding his bike... I walked past him while he had his shirt on and then when I walked by the 2nd time his shirt was off! was he trying to look good for me? why would he do this? by the way its was chilly out... so he couldn't of been hot
Why did he take off his shirt?
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