Complex sentence: However, she kisses her ex-boyfriend Andy outside the Archer during Series 2, only to be caught by Gaz and Louise; when engaged to Jonny she realises that she doesn't love him any more and dumps him.
Split into simpler sentences: However, she kisses ex-boyfriend Andy outside the Archer during Series 2, only to be caught by Gaz and Louise. When engaged to Jonny Janet realises that she doesn't love him any more and dumps him.