<human>: Can you provide a brief overview of the text?

I [F19] have been with my [M21] boyfriend for four months. We're both in college with pretty busy schedules, so we text a lot through out the day. Occasionally those texts become pretty explicit, and my boyfriend's told me he's gotten hard just from them.

Later on, I get extremely bothered by the texts, delete them from my phone and ask him to delete as well. The first time I became seriously angry with him was a month ago when I realized he had lied straight to my face about deleting a number of explicit convos. He apologized for lying but said he didn't understand why not deleting was a big deal. I agreed that since I sent them, he could keep them but it made me uncomfortable.

Yesterday I was going through our conversation on his phone trying to find a specific text and became extremely bothered reading undeleted convos and realizing he had saved everything since our argument. I begged him to delete them, and he became frustrated and said that the fact I wanted them deleted hurt because it signaled that I don't trust him and I regret being with him and our sex life (I also delete "afterglow" type or protection-related texts. I also hate PDA, which might be a factor, but I've gotten much better at it because he mentioned it as an issue). He offered me his phone after to delete whatever I wanted, but he was still angry and it felt like a test so I didn't touch it.

I can't seem to verbalize my issues as well. It's partly that I'm disappointed that he's unwilling to do something so simple just for my comfort, but I'm uncomfortable with the texts themselves too. I do come from a very reserved family. We also share the same friend group and, in their opinion, sex makes him victorious and me slutty.
<bot>: Is it unreasonable to force my boyfriend to delete sexts and texts concerning our sex life? Also, any possible compromises between deleting and saving I'm not seeing? (edit, formatting)