Deceitful women are known for pressuring men to buy property, have relations/children, make more of a commitment during a cycle of abuse. Men seem to fall for the she will be happy then or things will be like they were before hope. People do a lot for hope and unscrupulous folks know this. It's no more likely she is honest, she may just willing to go a long with it for a short time.
Tiffany,
I think you're making a great point here but would you provide some case examples? What are some telltale signs that a woman is being dishonest?
I'll share what I've seen. With both there was dishonesty from the start. The one friend was pretty far gone before I knew what he was involved in though.
The one I warned from the start, he saw it but at the same time he made excuses for it. He said it was her hormones, her personality, then it was she likes to make up stories, I didn't know her like her did, things like that. When I told him something serious that she was having an affair (not just "this girl is bad news" or when he told me about the arguments me telling him she was manipulative) he doubted me. About 9 months later he emailed me and told me the wife of the man his fiance was having an affair with found a text from his fiance.
Things that seemed not right were:
They talk very freely about how evil/abusive/terrible their former partners were very quickly.
Deceptive from the start but like I wrote above when the men see it they rationalize it.
Manipulative and put a lot of false obligation and blame on the man. They lay it on really heavy when he wants to make a break.
Pressure to marry and what I would consider aggressiveness on part of the female as far as pursuing the man.
They try to appear like the ideal woman for him instead of who they really are. It's more than just putting your best face forward.
Condescending towards others, almost this I'm so much better than the rest of the female population.

Like some type of fun hobby you could learn from each other or have fun with, she is an tv star level expert at.
With the one girl (that I wrote about) I don't think all she did was planned out but she still was deceptive and ruined lives. The other one was running a calculated scam. The more I saw the more afraid I became for him.
Don't rationalize manipulation, abuse, or deception would be my best advice and if you have female relatives or friends that do love you, ask them openly for their honest feedback. Most women won't say anything negative about another woman but if they see red flags they might be willing to share if you ask them.