Hi guys, I've still struggled with the third conditional on my daily speaking. Yesterday I said a phrase that I'm not sure if it is right or not. So, I'd like to ask for help. Thanks!

Dialogue:

- I don't know why the hell he called me only to say: I can't talk to you today. 

- Maybe he thought you would have gotten worried if he hadn't called you. 

Is that right? Does it sound "natural" to you? 

Thank you!

Hi, I'm needing help with the phrasal verb "go/come over"  in a "go there/come here" meaning. 

My questions:

Can I use go/come over + there/here? Is it normal? 

For example, I'm planning on visiting a friend and this one is already aware of this. So I call to confirm:

- Hi Jack, it's Mary, can I go over today?   

or

- Hi Jack, it's Mary, can I go over there today?   

Answer:

- Sure Mary, come over!

or 

Sure Mary come over here!

Another question, that phrasal is usual in the American English as well the British? 

Thank you!

hi,

when a person asks you if you want an specific option, is it correct and usual to answer: "yes, can be that one"

which is the better way to answer that?

thank you!