The Tribe: Edgar and Chris

Okay so we all know about David and Star but honeslty...What was they're relationship? David never showed any romantic affection towards Star but he was very posesstive of her. Take for example when she's about to get on Michael's bike to go get something to eat, the Lost Boy's zoom up and box them in. Then David asks where she's going, she reply's saying "for a ride" and then he just stares at her and says "Star". Honeslty what is going on! I'd love to hear all your opinion's on what you think was going on between them :)