It's not inevitable, but it does happen — your relationship can gradually start to feel boring. You can try to figure out what is different about your partner that has caused this change: Have they been less attentive than usual, or less receptive, or less engaged with you? But it may not be your partner who's caused this rift (if there even is a rift). There are potentially many reasons you're bored in your relationship, and though you might be tempted to blame your SO, the boredom you feel may have nothing to do with your partner. If you can't put your finger on what has changed in your relationship, then perhaps it's time to try looking within yourself.
I spoke to Dr. Gary Brown, a prominent couples therapist in Los Angeles, and relationship psychiatrist Dr. Laura Dabney to ask what exactly causes boredom in a relationship. "One of the primary reasons [for boredom] is that, the longer the relationship is, the more likely we are to settle into fixed patterns," Dr. Brown points out. So what are those fixed patterns that may disrupt your relationship satisfaction? Relationship boredom that has nothing to do with your SO may just be the result of one of these destructive tendencies.