Some or a lot of men seem to think women are stupid. That false. Women are smart and they always know what they're doing when it comes to men. They are in control of their actions and they are very selective.
If a female you are cool with is not interested in meeting up, it's not that she has other plans or just not interested in meeting up in general. It's that she's not interested in meeting up with you. If a different dude asks her the same thing, she will put off plans, re-arrange plans or drop all excuses to make sure she meets up with him.
If a female does not respond to your message, it's because she's not interested in speaking to you. Women always check their phone, messages etc. They see everything and read everything. The excuses they provide are bullshyt because if a certain dude messages them, they will respond come hell or high water and do everything they can to keep the conversation going.
If a woman is thinking about cheating/seeing someone else, they will tell certain dudes they have a boyfriend, but wait for the right dude and throw it all at them. It could be a friend of her boyfriend, or just someone she finds physically attractive. Again, very selective on every single thing and circumstances are considered.
If a woman claims she doesn't give head, the real story is that she will only do it for the right person she feels the most comfortable with.
I don't know why men think they are stupid when it comes to dealing with men. Granted their emotions may get in the way of rational behavior, but when it comes to being calculating, selective and secretive, they masters at that. And that does include manipulation.
Eddie Murphy said it best. Men are dogs. Women are cats. One is messy and easily noticeable, the other is secretive and diligent.