There was this boy named Tom who she dated from the time she was fifteen to age twenty

[MichaelLu2000]

I am wondering why these sentences written by native speakers use just who instead of a comma and who. Can somebody tell me why and what the differences in meaning are?

1. There was this boy named Tom who she dated from the time she was fifteen to age twenty.
   Alternative: There was this boy named Tom, who she dated from the time she was fifteen to age twenty.
   
   
2. I met this girl named Ciara who was the most beautiful woman in the world.
   Alternative: I met this girl named Ciara, who was the most beautiful woman in the world.
   
   Source:
   What Happens When You Choose Jesus Over Sex With Ciara
   Excerpt: 'Love, Lust & Faking It' by Jenny McCarthy

 

[5jj]

I am wondering why these sentences written by native speakers use just "who" instead of a comma and "who".

I am wondering why these sentences written by native speakers use just who instead of a comma and wh".

Distinguish the words you are asking about from the main question.

There should be a comma before thes non-restrictive clauses.

 

[MichaelLu2000]

Distinguish the words you are asking about from the main question.

There should be a comma before thes non-restrictive clauses.

The original ones do not have commas, and I don't know why.

 

[5jj]

The writers did not know how to punctuate correctly.

 

[MichaelLu2000]

The writers did not know how to punctuate correctly.

It could be. However, "I saw a boy named Tom who walked strangely" sounds fine without a comma for no reason.

 

[5jj]

It's unlikely.

 

[MichaelLu2000]

It's unlikely.

It doesn’t sound right?

 

[5jj]

It is a mistake.

 

[jutfrank]

I met a boy who walked strangely.

That's very easy to interpret as restrictive.

I met a boy named Tom who walked strangely.

Because of the interruptive placement of named Tom, it's much harder to interpret this phrase. I think it's more likely that somebody would interpret it non-restrictively, with there being a comma missing.