Complex sentence: Tom invites Jas to go swimming with him and Robbie and she tells Georgia that this will be a perfect opportunity for her friend to explain the events to Robbie herself.
Split into simpler sentences: Tom invites Jas to go swimming with him and Robbie. Jas explains that she will be going to the pool, and tells Georgia that this will be a perfect opportunity for Georgia to explain the events to Robbie herself.