Hi again, Symantha and thanks for your reply.
You can tell him that you think he's a great person and you've enjoyed much of your time together, but because of the many conflicts which seem to be due to your different backgrounds and the fact that you seem unable to communicate as well as you should, it would be best for both of you to move on.
Pepper your comments, which may seem negative, with compliments about a few things you like about him or that he's good at, so you end the relationship on a positive note. Don't make him feel like he's getting 'dumped,' but choose your words carefully so he understands that it's the cultural differences between you which seems to be at the center of the difficulties. Just let him know that it's very important to communicate well in any relationship, and you think he'll agree that this is just not happening between the two of you, so it would be best if you parted ways.
I hope all works out well for you!
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