So let me explain what brought me to this forum to begin with. I shall briefly tell you my dating experience in the last year.

I had 2 "partners" both of whom I met online, after emailing many many girls. This was at different times during the year of course, not simultaneously.

Partner 1:
We went on a few coffee/drink dates, she was a huge talker, sexually aggressive, had a prior abuse history.. and literally came onto me in her car. It seemed natural that after a few dates she came to my place and we were intimate a few times. She was also very argumentative and overanalyzed everything I said and did. How did it end? She had a habit of long-winded phone chats. It was late and I needed to get up early, I nicely told her this, yet she took offense to it and the next day texted me to say I started a fight with her and that it was a big mistake. Funny thing is, a few weeks prior, when I wanted to have a chat about "going to the next level / relationship" she told me she is mistrustful and not ready for that, but loves sex though.
Then she engineers this "argument" that I had no intention of creating.. and that was downhill then.. we never went out again. I made multiple attempts to reconcile and meet halfway.. but no response to my emails.

Partner 2:
Met online and she was very lovey-dovey and affectionate. Also had a history with an alcoholic BF. She came on to me in her car on the first date.
After a few times, I convinced her to come over and she agreed. We were intimate and all a few times... then she got really weird and spacey. She complained why I don't call her every day like her prior man did.. and wanted to break things off for "communication" reasons. I was befuddled.. as I did not see the calling thing such a huge issue to me. She made it sound like it was the end of the world!! She also made a big deal about lack of post-sex conversation. To be honest, a guy's biology is such that after sex we feel very tired, for days sometimes.. and we really just want to sleep for days, not talk. Of course she took that personally as well. How it ended? Instead of actually sitting down in person like I wanted and work it out, she insisted on sending long-winded emails to say we cannot continue because "we have different communication style". I found that a petty excuse for breaking up with someone, since I was willing to sit down about it in person, not by email.
She insisted on communication, but in person she never really expressed much yet by phone & email/text she was very expressive.


So......

Do girls overanalyze more than us and how does a guy handle that??
What went wrong with these 2 partners??
What could have been done differently??
What can I do with the next partner to avoid these situations??
Why do so many girls you meet on dating sites seem to have "problems"??
If I cannot have luck on dating sites, and girls you meet offline pay
no attention to us or seem to want to do anything besides play with their
Iphone... WHAT IS A SINGLE GUY TO DO??