Questions: Dating

So I'm a 50/50 girl because I believe that I should pay my own way just in case the first date doesn't work out. A guy asked me out and we decided to go 50/50 but he never showed up. He always said he forgot or was too busy to go on a date despite offering to take me. I didn't understand why this was because he wasn't paying for anything.

There was another guy I talked to which i wanted to go to a coffee shop date ( where we both pay for our own drinks) even though I personally hate coffee it just seemed like the cheapest option at the time. - this guy was rude and inconsiderate of me and I don't know why this was.

I thought men preferred 50/50 or super cheap dates but every time I do this the date either goes bad or the guy doesn't even seem interested in me. I constantly see men saying they appreciate a women who splits or is low maintenance/ cheap so I don't understand why I'm getting such ironic responses when I do this. Maybe I shouldn't be taking dating advice from the internet?

dealing with a casual partner and I found out they lied about their age by 3 years ( I though we were only a year apart ) but, after 6 months I found out and he still kinda denied that, but I didn’t really bother me too much because I had already liked him at this point. more recently they told me they were going to go out of town. We don’t see each other that often but they didn’t and I don’t really understand why they would lie about that