Bff turning into more

Hi ladies my best friend of 5 years has ALWAYS wanted more with me but I love him so much I’ve always been afraid, he’s 28 now and I’m 25 and I finally can’t push the feelings to the side anymore so I agreed let’s just try this out. I’m so nervous, we’re having our first “date” this weekend I just want to know how it was for you?? Anything different??? Since we’ve known each other for years how soon can we decide if we want to be together? We’ve been flirting recently and he asked to take me out. We’ve always had that “tension” but I never ever entertained the idea. More joking around, I’m just so lost and nervous. How was the transition for you?