Just send an email today. Something random, doesn't have to be something important. We didn't have much email history. I just sent when I found out that its a good proof. Pictures with When, who, where. Chat logs if you have them, I didn't send any. My friend sent plenty. Both worked out fine. Call logs. Travel documents of going to meet her. US applicants usually require less proof. So if I can get by with 1 email and no chat logs from Singapore office, I don't see how you can't.