What did just happen?

Hello all, asking this for a friend (F30)

My friend met a really nice guy (at least this is what she thinks). The whole duration of this "relationship" lasted for about 2 months. Context about my friend: she has recently moved into a new city, a new job and of course the pressure of getting married ASAP. So she was anxious in a lot of ways and her previous experience in AM has been not very fortunate.

So, she met this guy and they did have their share of arguments. But when she asked this guy for a semblance of commitment, he told her that things are going good ( I mean they would talk everyday for 5 hours, they would spend time together as well, in person they never had any problems, he would come over to our place to spend weekends with her, they also flirted a lot, made a lot of to-do plans etc). So he told her that he didn't feel like she was the one yet and this kind soul has gotten so much emotionally invested in him. So finally when they had an argument, he told her that she doesn't seem like a sorted person and now he didn't see her as a partner anymore and in all this mix she became a little unstable and told him that she was hurt by his words and had lost feelings for him and that she needed a week to sort her life out and then speak to him after that. But she got drunk the next day and drunk dialed him. Post which he just ended things with her. Now she is heart broken and has lost all her faith in love. And to me also he didn't seem like your typical guy, but all of this was kind of unexpected for me as well. He did say to her that he is open to stay in contact after all this. I am confused.

What did just happen here?!?!? Did we make a mistake in judging the guy? I feel like after knowing what she went through he could have extended some empathy towards her.

P.S. one odd thing I found about this guy was, in a regular conversation my friend asked him if he has ever fallen in love and he said no. Next was that he has been in the dating scene since past 7 years, has dated 15 girls and still wasn't able to make a long term relationship with any of these. One long term relationship as per him was of 2 months, some 2 years ago and that too ended because he said that the girl was kind of a mess.