Search Results: thinking about friends as more

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!!