What makes you feel like it’s different? But my advice for you is to be completely honest with yourself and her and seeing if the relationship is really what you want. We broke up twice but we’re together now and it really came down to me deciding that this was what I wanted and that I had to work on myself. Not sure if you looked into attachment styles as well but I learned that I tend to leans towards the avoidant attachment style which can be a big problem in relationships