A guy with deep trust issues falls deeply for a girl - and because he finds her so great is worried she'll end up leaving him or cheating on him.
She tried to defend herself and it just spurred on his jealousy and suspicions, causing friction and in the end he dumped her because he felt he couldn't trust her.
But in the end she was being truthful and hadn't done anything to abuse his trust and he's saying you shouldn't let your own lack of self confidence and trust destroy a relationship - and he now realises he has no one but himself for ruining with someone he held dear.
A guy with deep trust issues falls deeply for a girl - and because he finds her so great is worried she'll end up leaving him or cheating on him. She tried to defend herself and it just spurred on his jealousy and suspicions, causing friction and in the end he dumped her because he felt he couldn't trust her. But in the end she was being truthful and hadn't done anything to abuse his trust and he's saying you shouldn't let your own lack of self confidence and trust destroy a relationship - and he now realises he has no one but himself for ruining with someone he held dear.