7th grade relationships

So... my oldest is in 7th grade now and there is a nice young girl who seems to be interested in him. She is sweet and I know that it is only a matter of time before he realizes that maybe he would like to be more than "just friends" with a girl. So today I asked him about it. He said that they were just friends and that wasn't going to change because "7th grade relationships last about 2 weeks." So, he wants to keep his friendship with her. That is good. I tell him that is a wise choice. But does that mean that he really likes her and doesn't want to mess things up? Or does it mean that he still just isn't ready for that type of relationship? Or does it mean something completely different? Who knows. I just hope that when he does start having "relationships" he tells me. If he's 20 and as far as I know still hasn't had a girlfriend... I'll know I've been duped.