Search Results: dating a girl who never dated before

So I'm a part of a college Christian youth group and I'm worried that one of the guys in that group likes me. At first I just had a hunch because of eye contact and his body language, but I didn't want to be narcissistic, so I just brushed it off and convinced myself I was imagining things or overthinking him just trying to be nice. In the past week, he has made an effort to go out of his way to be nice or chivalrous to me on many occasions. Even to the point of waiting for me to drive off first so that I would lead the way. In our group chat on messenger he reacts to every single one of my messages, even when it's mainly girls just sending hearts. He doesn't do this to anyone else. And he doesn't pay as much attention to anyone else either. For a few reasons, he is not and will never be attractive to me (I don't mean this physically). He is not a person that I could ever see myself with. In our church people don't really date unless they're looking to eventually find the right one to marry and think the person they're about to date might be them. We don't just date for fun or cause it feels nice to have a boyfriend or girlfriend. So it's pretty serious when you have a guy show any interest. I'm totally freaking out because (1) he's 24, I'm 19... it's not creepy, but he's ready for marriage, I'm not. (2) I have about 4 more years of school ahead of me before I want to marry so that means I probably wouldn't be dating anyone for another two years. (3 ) I'm interested in someone else... Who, yes doesn't know or probably like me back, but I would never be able to even consider feelings for someone else while I still like him. (4) one of my close friends likes him, and if she found out she'd be devastated. (5) I don't want this to get dramatic and explode in our group. I don't want people to find out and cause more issues. (6) I don't want to hurt him, just because I don't like him that way, doesn't mean I don't have a soul or that I don't care.

In August, me and my bestie admitted to liking each other. He then told me he wanted a relationship with me and he loves me.
I’m a lesbian but since developing feelings for him, I don’t know what I am anymore. I’ve just got to the point of not wanting a label. I am who I am.
We’ve both slept with each other twice since admitting our feelings and we’ve also had massive arguments, as you can imagine.
Recently he’s all that’s crossing my mind, I’m thinking about him far too much. I keep showing people pictures of him and saying ‘how cute is he?’, that’s how bad I’m getting haha.
I have three reasons for not wanting a relationship with him: 1) I’ve never properly dated a man before (it’s scary). 2) what if I miss sleeping with girls and go out and cheat on him? It would be unintentional but I just know how much I prefer girls. 3) what if it ruins our friendship? I don’t want to lose my best friend.
I’ve told him all this and he said ‘I’ll give you permission to sleep with girls whenever you want. I won’t let it ruin our friendship, nothing will ruin it. We can take it slowly until you’re used to it’.
He always gives me reassurance but i just feel like that’s not enough. The thought of dating a man is really scary.
I’ve even deliberately invited him around my house today, telling him I want help decorating my room. When in reality, I just want to see him.
He’s suggested just an open relationship to me in the past and I told him no, it’s a bad idea. But with all these thoughts, I’m thinking maybe it isn’t a bad idea after all.
I’m going to tell him today but my problem is, is it a good idea?
I want more then friendship but I don’t want it to jeopardise it.
Please give your honest opinions!!