It’s not unusual to call or visit family members, but when it becomes an escapist behaviour in which your partner interacts more with them than you, that’s a red flag. Breur explains that a host of assumptions enter the picture in this case, including the feeling that your partner is more comfortable talking for long periods of time about topics that should be reserved for the two of you. Similarly, your partner may opt to spend more time with your children or pet than you.
The fix, Breur says, is to specifically convey to your partner how this makes you feel, while offering a compromise at the same time. For example, suggest that your partner still speak with their sibling, but tell them that talking for two hours daily is bothersome for you. Then, suggest reducing phone time and use the extra time to spend together.