Hey back at ya! I'm exactly the same way and don't think you're strange at all. Secretive is my middle name and my other ENFP friend who talks way more than me with other people is a pro investigator but even she has to pull tooth and nail to get the details. It takes me a long, long time to share information with people because I have to feel like I can trust them. It's been both good and bad. I've missed out on sharing somewhat but then again, most people don't seem worthy of the real me so...It totally depends on situation for me. Sometimes I'm the most E of E's and sometimes I'm almost shy. I'm also slow to warm up. I mean I usually like most people I meet but I really don't let anybody to see me. I protect myself very much for some reason. So on one hand I'm the most open people on earth and on the other hand, I'm the most secretive of people.
...I'm a strange person. + ENFP.