There are many factors that can influence your relationship with your significant other that you might not always foresee. One of the most common issues is dealing with their significant other's family and lack of independence when it comes to forging their own life together. Although having close ties with your parents is a great thing, at some point there comes a time when the signs your significant other is too attached to their parents become impossible to ignore.
Whether you get along with each other's parents or not, in-laws can be a huge force for good or a force for not-so-good. Feeling like your partner is more attached to their parents than they are to you can cause some serious issues in your relationship, as innocent and even positive as it may sound.
Part of being in an adult relationship is leaving your childhood home and building a life with someone else. Although it certainly doesn't mean you should cut ties with your families, a little breathing room is necessary. These signs might not be universal, but if you can relate to a few of them when it comes to your SO and their family, you might be dealing with someone who needs to learn to let the attachment go.