One of the reasons couples make the step into therapy is when they realise that certain patterns of interactions get in the way of feeling close. When the couple can't find a way through this, times are tough for one or both. Entering therapy is in itself a step closer to getting closer again. There are of course many other reasons why couples seek help.
Learning about relationship patterns and good ways to interact and respond to one another are key to improving the situation. Some things need to be learnt and we should not always expect to just know how to be in a relationship and how to deal with the hard times. Getting through hard times is an important step to develop a higher degree of intimacy. It also builds trust that future difficulties can be worked through.