求翻译：说真的，我都不知道怎么找到你的，就随便加你，当时我还以为不是国外朋友呢，当我知道你是美国的，我很兴奋，因为我一直想有一个国外朋友是什么意思？

Really, I don't know how to find you, feel free to add you, I thought at that time is not a foreign friend, when I know you are United States, I was excited because I have always wanted to have a foreign friend