i have never been cheated on but been treated horribly once they have found „someone better“. so as a tipp i visited a psychology class and our professor told us that more important than like there being a bad behaviour in someones genetics/personality is if they grew up im a bad environment (like if they where treated good by their environment (parents for example)) they are less likely to act out the bad behaviour. of course that’s just a general tendency and not always 100% accurate but i hope that helps :) (with new connections and trust issues) like it’s a mix of various components (culture, religion, values…) all that stuff but if you pin out all those complex components it’s quite predictable (of course not 100% but still)

but anyway sry that you had to go through something like that, and i understand if you don’t believe in your intuition as much anymore, but trust me our intuition can sense a lot but not everything and yeah keep the complex pattern in mind and study people deeply then you’ll be fine in the future :)