A lot of them. Here are some:

Actions speak louder than words. MUCH louder.
People (men and women) will tell you what you want to hear to get what they want out of you.
There is no such thing as a perfect human being. If everything they do or say seems “perfect,” be suspicious, they may be a skilled liar and hiding something.
Become friends first. It’s in men’s DNA to want sex (even with someone they barely know). If they are a good guy, respect you, and really like you, they will be totally good with it. If he says he’s good with it but then pressures you for an ETF, do not go out with him anymore. He’s not good with it. He’s only hanging around long enough to score.
If a man takes you out on a date, spends a ton of money during the evening (drinks, dinner), and then gets angry if you refuse to have sex, do not go out with that man again, even if the next day he says he sorry. If you accept his apology and continue to date him, rest assured that he still expects payback for the effort he makes and the money he spends via sex and eventually you will be a victim of date rape.
If you have been dating what you think is a great man (or woman) for awhile, and they have been treating you like a queen (or king), then suddenly, on occasion, treat you bad (stand you up, criticize you, embarrass you in front of friends, etc.), exit out of the relationship no matter how much you love them (you’ll get over it). The bad treatment only gets worse and more frequent. You will become their everyday door mat.

Full of senses !

U gonna be and remain broke fam!

Never double-dated or cheat in a relationship... So I will have to walk pass here.....

If u have enough financial resources, then continue double dating. At least u are helping them broke girls from ftustration while they give u love in return