What is your point? You take the piss left right and centre you can hardly moan if someone does it to you.
If you are "foreign" it is certainly not apparent so its a bit disingenuous to suddenly start bleating that you are sensitive to remarks about your use of English.
And I think the comment inferred that you don't speak to real people very often, rather than that you don't use English very often.
Do you want to trade sob stories? When my sister bought an ice cream at the seaside when we were little the ice cream man gleefully told her that Enoch was going to sort her lot... Um Bongo jokes FFS grow up.