Mostly based on the shitty exes of the straight women I know:

Votes R. This means they do not respect women full stop.

Does not reciprocate emotional labor.

Swears liking femboys is straight.

Gets upset when told no.

Lack of confidence. This usually comes with all sorts of manipulative behavior to get what they want because they won't say it outright. Had a friend seek out a dominant person who turned out to really be a submissive but couldn't get women that way, so he would try and get them emotionally attached and manipulate them into dominating him without negotiating for those things.

The need to be right.

Being offended by the man vs bear thing.

Jokes about sexual assault.

Any hints of abuse. Controlling behavior. Love bombing. Etc. It's only going to get worse.

Cop.