Let her read or hear a few other people’s stories about how they got sucked in and what their experience was like.
Familiarize her with certain warning signs. Such as, if her feelings are often discounted. She says she’d rather not eat at the same restaurant for the fifth time and he argues about how great it is and drives her there anyway. When she says she is uncomfortable with something he goes on about why she should not feel that way. Constantly her feelings, opinions and beliefs will be “shot down” and invalidated, and replaced with his own version of everything. She may think she is being cooperative and open minded to go along. Years of constant invalidation though, will leave her wondering who she even was before he replaced her reality with his own. A decent guy will care and pay attention to what you think and feel and respect boundaries.
Beware of gaslighting. It’s when they constantly deny things you know to be true and lie to your face until you question your own judgment and perceptions.
Beware of obsessive behavior. If he can’t give you enough personal space, has to be around you non stop, calls 30 times a day, believe it or not it is not a good sign. Like I said, it is flattering at first and you might think wow this guy is so in love with you! Ha . No . It’s actually an early sign of obsessive controlling behavior and a person who will not respect normal healthy boundaries.
Test him. Say “no” once in a while and see if he respects the limits you set.
Check his background early on. Really.
Beware of someone who goes through a lot of jobs in a short amount of time, has a criminal record, has prior convictions for assault or domestic violence and fighting.
Beware of someone who constantly trashes his exes, believe it or not. If he villifies other people, painting them as evil, blames all his problems with them on THEM and nothing is EVER his fault, if he can’t take criticism of any sort without becoming angry, if he has frequent problems getting along with neighbors, people at work, etc. If he is ALWAYS having a problem with someone else and it is always the other persons fault in his mind.
If he has substance abuse problems but is still in denial about needing help or treatment, it’s a bad sign.
Do NOT enable someone elses dysfunctional behavior EVER. It makes everything so much worse, allows the other person to never learn from their mistakes, and YOU become the other half of the dysfunction. If he doesn’t pay the light bill let him sit in the dark, and go stay with your sister. Let him sit there with the lights off. Don’t “fix it” and pay his bill. If he gets arrested for fighting, let him sit in jail. Don’t lie for him to get him out of trouble or save his job. ALWAYS let him feel the consequences of his choices and behavior. Rescuing him from natural consequences perpetuates a dysfunctional cycle that could be broken pretty easily by someone who refuses to enable it.
If he hits you, press charges. Don’t back down. Don’t think he won’t do it again. He will.
Emotional abuse always precedes the physical abuse. Maybe he hasn’t hit you yet, but your feelings are hurt all the time. That is still abuse, and he’s testing you to see if you will let him hurt you.