Ofcom has received 3,094 complaints about this year's Love Island series.
The broadcasting watchdog said most complaints followed after contestant Maura Higgins tried to kiss fellow islander Tommy Fury, despite the fact he rejected her advances.
Some 709 viewers claimed the Irish grid girl sexually harassed the boxer during the broadcast in June. Ofcom determined the complaitns did not warrant further investigation.
"While we recognise that many viewers disapproved of a contestant's behaviour in this episode, we took into account the context in which it occurred, including the nature of Maura and Tommy's relationship, before and after," it said.
Other complaints being assessed include the manner in which contestant Michael Griffiths treated eventual winner Amber Gill, after breaking up with her in favour of a new cast member.
The 2018 series received over 4,000 complaints and viewers were most upset when a contestant was shown out of context footage of her boyfriend with his former partner in an adjacent villa, a moment which sparked 2,525 complaints.
The ITV reality series has in the past been criticised over the way it cares for the mental health of contestants.
Former cast members Sophie Gradon and Mike Thalassitis committed suicide two years after appearing on the show in 2016 and 2017 respectively.