It would be

I am not Italian. I don't understand. sorry.

You may safely disregard that person.

Yes.
Thank you.

In this sentence you wanted to address another person, but you use 'I'd start ' to be less direct?
I'd start the sentence with a capital letter, and end it with a period. (less direct).

Tara you make mention of a 'comma,' havin' to do with another phrase somewhere; but I'm not intimately familiar with the instance in question. Therefore need context

Been fun chat tho, lookin' fwd to 'nother q

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