It wasn't rape nor really forced more like fuckboi saw her vulnerable and heartbroken and went for it.I think rom-com NTR means you use verbal technigue, you use your friend, etc. to make someone change her mind. Using forced sex or raping is not a rom-com method, it's a doujin method. LOL
I don't think the old plan for fucboy who was potray as a real good man is to get Sakura by raping. Chapter 129 destroyed him completely from a supporting male to villain (rapist). LOL