What is with men in their late. 30s not being upfront with what they want?

I’ve had a string of flings in the past year with men in their mid-late 30s. They all say in their profiles and within the first couple of dates that they are looking for a long-term relationship, they want to settle down, etc. But then the truth comes out that:

A) They actually just got out of a long-term relationship or engagement and aren’t able to commit

B) “I thought I wanted kids and marriage but don’t, I actually just want to sell my house and move to a tiny apartment and climb rocks.”

C) “My life is chaotic and I can’t give you the stability you deserve.”

D) “I’m 39 and I do want marriage and a family but I also really love alcohol and wish I could spend all my free time doing acid and getting stoned.”

If this is how you really feel, why are you putting the exact opposite in your profile?

Why do they be lying so much and how do I weed these people out? Or maybe it’s a “gentle” way of saying I’m not attractive enough?

I don’t get it.