one week is too soon for a guy to propose cos u both dont know anything about each other. marriage is a lifetime thing so u have to be sure before you jump into a marriage so as not to jump out later and add to the increasing divorce rate.
on the other hand these days guys know ladies are desperate to get married, thats why they first propose cos thats wat they know girls want to hear.
  so be very careful cos he might want somethin from u (not good)

na wa oo