How much blame the guy that deliberately strings along women get?

We already know women shared some fault too for allowing herself to get string along, for allowing years to get wasted. Now lets focus on the man's role in this.

Lets say he deliberately lies to the woman about wanting kids and marriage, he lovebombs her and does everything possible to get her attached and fakes a future without ever intending to propose nor have kids with her... just keep her as a live-in girlfriend to later on break up with or until she gets bored.

From a 1-10 scale, how much blame does the man shares in that?

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+1 y
This is if the man already knows from the start he doesn't plan on marrying and having kids but leads women on to keep them attached to him as gfs.
How much blame the guy that deliberately strings along women get?
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