<human>: Give me the gist of the text in a nutshell

I am not sure if this is the right subreddit, considering I am not in a relationship. 

The last few people I have fallen for within the last 3 years or so have turned out to be quite psychopathic - compulsive cheaters, liars, alcoholic - the last one led me on, I later found out he had a long distance girlfriend. The one before that is now under trial for attempting to set his ex's apartment on fire.

Looking back on these few failed ventures that almost started but never really took off, I do notice warning signs that these people exhibited. With hindsight it seems like I was extremely blind - or perhaps intentionally blinding myself to these warning signs. 

Second thing that I notice when I start developing feelings for someone is that I tend to lose my individualism and rationality. I know this is probably quite common with falling in love. But I just find that it does more damage than good.
<bot>: When falling in love, I blind myself to tell-tale signs of alarming behaviour and I lose my individualism and sense of rationality