Happily partnered up now but just wanted to share info after catching a boyfriend out on these previously. Signal and Telegram are a more secure version of WhatsApp but are frequently used for cheating. I had no idea my boyfriend was even on these so if you’re having suspicions it’s a good idea to have a log in and check for known contacts. I found him on both and was able to monitor when he had logged in etc to narrow it down to the two (separate 🙄) women he was speaking to and unfortunately I was proved right so thought I would post in case it helps someone.