I don't know but I would see a red flag if I were you. Sounds like trouble whether it will manifest itself or not, who knows. be weary
Maby he has a crush on you, or he is just cares too much on you. If you notice that he is acting too weerd, talk to him and tell him that you are botherd with his behaweur and find out what is really going on in his head.
He wants you and in his head you already have a connection. I would put a stop to it now before it gets worse unless your interested.
In the UK and other such places mate means friend. kinda like how bloke means man. They have a slightly different spin on English than us. cigarrettes are fags, vagina's are fanny's, so on.