good things : very sincere, romantic, clever, caring(family & friends), ato wa..futoppara kana..
difficult things : As i said he was clever, at the same time, he would not follow rules sometimes.
I see difficulties to deal with his strong family ties.
not my bf but...i have met lots of vietnamese people. It is hard to generalize them but...i would say some are very emotional. bad dicision makers/swinging mind(change opinions all the time from japanese points of view) U have to take initiatives at the certain moments.
ato wa...too much parties...they are really good at parties. I can enjoy parties with him but endless. but ne...u are going to be a tough girl as well. Maybe it is a sort of good thing.
If your bf consider u as his girl friend, he, his family & friends would really help u out anytime.