Most relationship difficulties can have a negative impact on sex:
Feeling stuck. Perhaps your relationship has lost its shine. You still get on, but overall it feels pretty stale.
Fighting that changes nothing. Bickering and contempt are usually destructive and can create a downward spiral that is hard to break.
Affairs (physical or emotional). The pain, loss of confidence and trust can make recovery a daunting prospect.
Children/families/money/work/illness. Life can throw so many obstacles at us that put a real strain on what might otherwise be a great relationship.
Opening up. When one partner wants to explore a non-monogamous relationship, but the other partner wants to maintain the status quo.
Sex therapy usually involves exploring relationships, and relationship therapy will often involve exploring sex. At your first appointment, we will talk about what would make therapy useful, and perhaps agree where would be a useful place to start work.