That's the thing about trust, once it's gone everything loses that light-headed empty-stomached touch. Things that seemed affectionate and flirtatious are now suspiciously friendly or just rehearsed. Once you get somehow hurt you expect a compensation of sort, expecting the other person to understand or just care as uch as you, which in many cases doesn't happen, as overall no-one is that secure in themselves and aware of the impact of their actions. Overthinking is still the mother of all shit, but why should I not take things personally if I feel their effect? Expectating someone to pay more attention to you to balance out for their misjudgment puts that extra strain on your perception of the relationship. Things get screwed up and the continuous miscommunication gives one false hopes and creates distance between people.