Complex sentence: She met Nowland when he was playing for Wimbledon in 2002 but have seen less of each other since his move to Nottingham and have been having an on-off affair for the past three years.
Split into simpler sentences: She met Nowland when he was playing for Wimbledon in 2002 but the couple have seen less of each other since his move to Nottingham. They have been having an on-off affair for the past three years.