Daughter dating

My husband and my oldest daughter will be 18 years old this May. She has been more focused on family, friends, school, and her basketball seasons, which makes me incredibly happy. I was worried about her growing up. She would have had a boyfriend in high school, which could have disrupted some things for her. Thankfully, that never happened. Recently, she has started talking to a boy who is in the same grade but goes to a different school. She has known him for two years because he is actually her best friend’s cousin. He went to school with my sister, who is four and a half months younger than my daughter. (Yes, he read that correctly. I have a sister who is younger than my daughter.) Recently, they both confessed that they like each other, and she recently asked him to her prom. He said yes. The only issue we have been dealing with is her father. When she told him that she is going to prom and that she asked this boy out, he immediately said, “No, you’re not. Did I say you could be with that boy? I thought you were going with your best friend.” It really hurt her, but it doesn’t seem to sink into his mind that it did. Her best friend is also going on a date. That all happened about two and a half weeks ago, and he seems to be finally realizing something that is happening. We have gone prom dress shopping and gotten everything she needs for prom. This coming Friday, April 11, they are going on an in-home double date because unfortunately, her best friend was unable to get off work. So, they are just going to rent some movies and watch them over at her best friend’s house. That’s nothing new; they’ve done it before, but this time, obviously, it’s a little different from how everything is going. I have a feeling that because something was said to me, he will be asking her to be his girlfriend that night. So, I’ve sat down and talked to my husband about what’s going on and what I’ve been told. As of now, they’re just texting each other to get to know each other better. Every time I tell him that I think they’re going to take their relationship to the next level and be Bf & Gf, he gets upset and irritated, saying things like, “What are we in the 1800s? It’s either dating or they’re not.” I think he thinks that because we only knew each other for six months, then I moved schools, and then his sister wrote me a letter, and we went on a date, not long after that, and we got to know each other was in a dating relationship. We were 13 years old at that time too. We’re both 35 now. I understand how crazy this is. This is happening as our little girl is growing up. She’s getting a boyfriend scenario, but it just seems like he doesn’t care what he says or how it makes her feel.

I have talked with him multiple times and say you do realize she is 18 years old almost she is going to be a full grown adult but his whole thing is she’s under my roof. I’m paying for her school and everything else so it’s my rules and I just don’t get that because he was never raised like that.