Really if you are that unhappy what are you doing about it is my thought. Are you trying to create changes? or are you hoping the problem will disappear over time. There seems to be a large group out there who are in my opinion ostriches - they burry there heads in the sand to avoid problems; my believe has always been that by doing so your problems just become larger and you have not developed any tools to aid you in dealing with said situations.
Relationships are complex and no two are the same. Looking at another's relationship for solutions is not going to be the fix you need. We are individuals and we bring to the relationship table our own ideas and our own inner demons and problems. I have always said that I personally do not understand my parents relationship or different family member's relationships and I am certain they do not understand mine; and really it is none of my business unless so said relationships are effecting me and mine. My parents have been married for 54 years so for them it works, I have been married for 30 years and my marriage also works, but what I do know is that it takes work and hard work to maintain a relatively healthy relationship where neither party feels neglected or taken for granted. Relationships are fluid and move around emotionally and physically and need monitoring.
I have always thought that my marriage was still viable because my husband and I have never been in the same emotional 'I do not like you at this time' phase so one partner or the other has worked through the 'war' of that moment and back on track we go. To assume that the relationship you have from a beginning will b the same through out your history together is incredibly naïve and will only create more internal turmoil for you as that relationship progresses.
I am a strong advocator for being prepared and having 'tools' available to help you through moments of conflicts or 'I do not like you' phases. Remember even though we are a social lot us humans we are also in many ways unprepared to share our space with others for long periods of time, so being prepared emotionally and mentally to those times is a wise move.
In my tool box I have true unbiased friends who will listen and respond if needed and do not judge, if you do not have that my recommendation is that at one time or another we may need to seek out a professional helper.
I also believe in the power of writing. I have done many emotional release work through writing down my feelings and issues/ acknowledging them and then burning the paper when I was ready to let it go.
I also am willing to acknowledge that I play a role in my 'drama' and am not always right or wrong depending on the situations.
I understand the power of forgiveness, both to myself and to the other party and I work at not allowing my internal 'ego' to take hold ( at least not for long )
I also understand that emotions will take hold of your body and store and if left untreated can cause illness, so I endeavour to be diligent on my body's aches and pains and illnesses and if I feel I have been the cause I use many of my 'energy healing' techniques to address the situation.
If you are unhappy whether in a relationship/marriage/work or ?, then remember no one is going to swoop down and rescue you. YOU need to be your own wonder woman or man and create those changes for yourself. Stop giving away your own power by either doing the same things over and over again or by doing nothing.
Happiness is a thought and it takes work to bring those thoughts into fruition so that you feel and see them in your life. Be strong and Be the person you will you could be.
Just a thought