Isn't it possible we're "cousins"

So I have a last name that's not common.. Every now and then on Facebook I get DM's from someone wit the same last name who thinks we could be related.. I generally think that's possible because like I said, the name just isn't common..  Anyways... while I was on my Miami vaca I get a DM from someone who had claimed years ago that we were cousins... It went a lil something like this...

😂😂😂😂😂😂😂😂😂😂😂😂😂😂 I laughed so hard when this interaction was over!! This can't be life! But I can't make this shit up!!!