<human>: Can you summarize the given text in a few sentences?

I met my bf on an online dating site and said my name was "X", which is actually my middle name. I didn't want to use my first name "Y" on the internet for security reasons or whatever, plus I never really thought we would work out and to be honest I like my middle name more. We started dating and things went pretty well and we are together till now.

Eventually, I told him that "X" was my middle name and "Y" is my first one, but I didn't tell him that all my family and friends actually call me by my first name. This is the main reason why I haven't really introduced him to my family or friends, because I think it might be weird for him to see how everyone calls me "Y" and he is the only one that calls me "X". We've been together for over a year, and I've met his family and some of his friends and they all call me "X".
Am I overreacting? I really want to introduce him to my family and friends, but I'm just not sure how to handle this situation. I just feel like he might think I lied to him. Help :(
<bot>: Met bf on dating site. Told him my name was my middle name but in reality everyone calls me by my first one. Worried about him feeling like I lied to him about my name.