My wife has started saying, when I get back from staying the night at my other partners house, which is one night a week because of work schedules and life stuff, "you'd rather just be spending all your nights at her house wouldn't you?". I respond no of course not and do my best to tell her that I love her and hold her and reassure her. Last night when she asked me, I responded how I usually do, and then told her afterwards that the way she words it makes me feel like I'm being guilt tripped for staying the night with my partner which is something we've agreed is okay. She then breaks down sobbing saying she it's not about me, that it wasn't okay for me to say that because she was expressing her feelings, that I was being inconsiderate and cold and that she was just trying to reconnect with me and get comfort and reassurance and have me hug her. We were literally in bed cuddling and watching a movie together when she said it and I responded with the love and reassurances I always give her.

So how do I address this without being inconsiderate? Any advice would be appreciated.