trust
If I had to pick one character trait that is the most important to me it would be honesty. Usually if I catch someone lying to me once that person is discredited for me forever and would have very hard time to gain my trust again. Honesty is my most important principle of life. And I stick to it. I tell the most horrible truth rather than a white lie. I do however sometimes lie by omission. I'm guilty of that and I rather avoid answering a question if I know that the answer might hurt someone. But once pushed I will blabber the truth and create an uncomfortable situation. Since I assume that ppl tell the truth I'm easy to manipulate and scam. Every new person in my life gets full trust until they lose it. This totally opposite to my partner who distrusts everyone and you need to slowly gain her trust over time. Probably that's why I hate scammers that much as I need to artificially turn off my trust and think critically about what I'm being told and I just want to trust...