I have been in this situation a few times, with a few men online, several years ago. I did meet most of them.
I was single and a lone parent, and I was very lonely.
Once I met up with whichever man it was, there was absolutely no spark, not the slightest feelings of what I had felt when talking online and on the phone with them. I never saw any of them again. I would miss the contact and it felt as though an actual relationship had ended, due to all the hours and hours of time spent talking over weeks. It just intensified the loneliness for me.
I would end up getting almost high from the contact with the other person before we met, and then after meeting and realising there was no spark or attraction for them, I would become very very depressed for days.
I finally realised that something was missing in my life, and I was trying to find it online, and then getting carried away with it all. It gave me some much needed excitement in my dull life, and I felt flattered that I was being given attention, compliments and the rest. I felt alive and sparkling.
It seemed so unreal, and as I was usually exhausted having stayed up for hours chatting, I too felt as though I was hypnotised, as you said.
I also found myself sending pics and talking dirty, as all the men, very early on, started becoming suggestive. I did not like what I was doing. It was certainly not me, but I wanted to keep the other person interested in me, and so sadly went along with it. I would always feel bad about what I was doing, however.
I know it sounds dreadful, but I was so lonely and having a very bad time in reality. It was escapism for me, I later realised.
As stupid as it sounds, I thought the other person would fall in love with me, and everything would be perfect.
These men I met, all wanted something sexual, firstly online, and then in reality. They all had partners, and children, as I would later find out.
The lies they told were amazing. I can laugh now, but at the time, I was devastated.
Once they got what they wanted, and often they did not, they would have no more contact with me. I also found out that some of them were chatting with other women.
Why not try having no contact for a few days? Catch up on sleep, rest and relaxation. You may see this whole situation in a very clear and different way.
Please think carefully about what is happening here.