<human>: I just had this weird situation with my boyfriend and I don't know what to make of it. He wanted me to install an app for checking cheap flights, and I told him ok if he did it for me. So he took my phone and asked me for my access code, and I told it to him straight away. 

Later that day we were out and needed to use a map to know where we were going, and I had his phone in my purse. So I took it out and asked him for his access code to check the map. He told me he didn't want to say it to me, took the phone out of my hand, and checked everything himself. I was a bit taken a back by this, and asked him why he wouldn't just tell me. And he said 'well, why do you want to know?', and I just said that since i told him, I thought he'd reciprocate. But no. He kept asking why I wanted to know, if I think he's talking to girls or something... etc. I eventually just ended the conversation saying that the only thing I disliked about this situation was that I told him and he wouldn't tell me, which is weird. He said that he just wants his phone to be his thing. And the conversation ended.

What do you make of this? Or am I just overreacting?

Can you condense the text into a few key points?
<bot>: I shared my iphone access code when boyfriend asked, but when I asked he refused and made a bit of a big deal out of this. Should I be suspicious or is this normal?