My bf gets me to check his Facebook messages for him and I was checking his messenger and there was a conversation with him and a girl he works with. They have known eachother for years. Anyway the conversation wasn't anything bad but my issue is that the conversation was back in May, and at the time, his phone wouldn't let him download any apps. But I can clearly see somehow he was using messenger. there's no way he used his iPad because it won't download the version of messagener. This makes me wonder stuff. Any advice?