#3 – Acting Odd around the Phone/Laptop
If your partner suddenly becomes secretive around the communication devices, then they are definitely hiding something. However, remember not to jump to conclusions. Maybe your partner is planning something for you. Ask to see recent messages on their phone. If your partner avoids giving it to you (or starts fighting with you), you will certainly know that something is not right. However, in case the secretive behaviour continues for some time, you should certainly search for some answers.