pepefranca -
Welcome. I would rather call it harassment. It did have a love-bombing component. As it was intentionally structured to serve a hidden purpose I would file that under "speed seduction". It was pretty much by the book, step by step NLP approach as you can also find in one of the forums here.
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forum.culteducation.com]
There is also a book by Neil Strauss who puts this more into a story with pros and cons but for entertainment. There is a number of manuals out there and the "seduction community" online. The problem is that it may sound amusing from the outside. However, it is very much a methodology and women or for that matter
any person one would use it on are treated like objects. So it is similar to what you point out: getting close just to destroy. Not a constructive approach one way or another.
Once you've read through it you will recognize it and you can guard yourself better if you don't want to go along with it.
It uses conversational hypnosis (which is a big portion of NLP as the founding fathers build the model amongst others on Milton Ericksons' hypnosis work). It doesn't necessarily work on everyone but it could mislead you to believe that someone is apparently like you, making them a nice guy while they really only
pretend that similarity and create false intimacy or enthusiasm that way.
Note: I point this out as it does not only pertain to flirting or "speed seduction" but all situations where NLP is (potentially mis-)used on you (without your knowing).