Yomeiri No Susume Taisho Onzoshi No Goin Na Propose
Haikei Mishiranu Danna-sama, Rikon shite Itadakimasu
Ch 20 Fl has rumors running around about her sleeping around. Untrue, started by a noble guy who tried to get her by getting her to beg for him to save her when he told two other guys to force themselves on her. She defended herself instead. ML already knows about his inability to show emotion or empathize with others well. He was almost reverse SA'd by some man eating widow (yes, she's a noble). He has feelings for his wife (FL) but does not know how to express himself to get her to stay with him. Put forth a bet where she has to stay with him if she gets pregnant within a month. (Prior to learning the rumors were false. He wanted to give her a taste of her own medicine because of his trauma in the past.)
Fu Fu Qing Cheng