I’ve been with my fiancé about a year now. His daughter is 18 years old . I have 2 other children from a previous relationship. I met his daughter shortly after beginning the relationship with him. We seemed to have hit it off pretty good. So I thought . She is 18 & I’ll be 27. So she’s not to much younger than me. Well after we got engaged (Christmas day 2018) she really got mad .