Biggest red flag: they don't want to meet your friends and/or don't want you to meet theirs
And isolate you, which is important in being an effective manipulator
When you don't hear from him every day, as before
They're suddenly more busy. That might be an indication they are two-timing you.
I was perplexed:]
Some problems can't be solved, just let her cool off because your efforts to fix this will only make her angrier
When you portray love, affection, and attention, and they think you are "controlling", move on.
When you give the space they say they want, and they think you are being "indifferent", move on.
Who needs it? If the "reward" does not warrant the effort, it's time to go.
Unfortunately, love can humiliate, and rarely allows one to take one's own advice.
Controlling, jealousy, gaslighting,disrespect, isolation... just a few top ones
rape-- total red flag
Speaking from a reader's experience (and not actual experience), trust being absent is the biggest sign
Silence. It's deadly.