A man with a cowboy hat and a gentleman with sunglasses on his head are seated next to each other.
The two friends are reunited after years apart
Just because the two men are sitted next to each other does not mean that they are friends or that they are reunited.
People can sit together without being friends.
Two men may or may not be friends and men sitting next to each other may be because they are reunited or it may not as they may know each other or they may be strangers and the period of time during which they sit next to each other is not necessarily before or after anything and the length of time that they have seen each other may be any of many lengths other than years if they have even met each other before at all.