I'm finding a partner who have serious desire to learn English like me. I have been on Italki many times and found a number of partners. I was very happy that I can have friends to learn, to share English together. However, after times of talking, instead of helping each other in learning English, they just ask and ask about picture or video call. If I can not provide one, they disappear for ever. I wonder why? Now, I just want to find some serious partners to learn English.