Aw sis, I get why this is bothering you especially ngayon na second pregnancy, hormones are real and it's normal na mas sensitive ka sa ganitong stuff. A few of us mums have been through something similar, and honestly, it's not so much about the ex kundi about the broken promise and him doing it again kahit sinabi niya na hindi na, that's the part na nakakapagod emotionally. Since he's otherwise a good partner and loving, maybe try talking to him again pero ito not in the heat of the moment, like when you're both calm and he can really listen kung bakit ito matters to you, especially during pregnancy when you need reassurance more than ever.