Lisa was delighted when she found a box of expensive-looking lingerie in her husband’s car. Her birthday was approaching so she assumed it was a gift. The big day came and went, but the lacy knickers never materialised. Instead, Lisa received a voucher. Her sixth sense told her something was wrong with her marriage. ‘We had been together for years and things had got a little bit mundane,’ recalls the mum of two, who is using a pseudonym. ‘We were just getting on with normal family life. We weren’t being intimate.’ When Lisa asked her husband, Dave*, about the underwear,...