Why he put his hand on my upper chest?

We were on a date and he put his hand on my collarbone/sternum (he didn't try to touch my boobs)
i was wearing a long sleeve v neck shirt (it wasn't low cut) and after he kissed me he put his hand on my upper chest-- I thought it was super random and a little weird... why did he do that?
Why he put his hand on my upper chest?
Post Opinion