I've spend a good amount of time working on what I will no longer put up with in relationships /dating & it's still a work in progress but I have managed to help myself by immediately blocking someone who has red flags (I have to be stricter than most people because of being on the spectrum I naive)
- They ask you to do something which you say no to. But they won't accept no and keep nagging.
- Constantly on dating sites. Constantly. There are many reasons why these people should be avoided not least because when they actually find someone they still keep looking.
- Ignore your messages / don't text back. Nobody is too busy to text you back.
- Look at their Twitter - the people they follow can be quite revealing. If they follow people like Hugh Hefner it's a bad sign.
- They've never had a relationship. The older they are the worse this is. (Not always but generally)
- Break ups were never their fault.
- They call women 'sluts' & other misogynist terminology.
- They put photos of themselves on Facebook and blank out other people. Unless this is a child this is odd and suggests they see other people as props in their life.
- They tell you they don't know exactly what they're looking for.
10. They don't have many friends AND constantly fall out with the friends they do have and work colleagues and family (individually no but altogether = red flag)
11. They have a child they either don't see or don't pay child maintenance for.
12. You go for dinner and they ignore your wishes to split the bill, or they tell you what you're having.
I'm sure there are more...