The beach trip was pretty fun, eventful and I liked how the boundaries were shown, also nice to see that despite being a hopeless pervert Tatsuki can still rise up to the situation and be a good husband when dealing with real problems.
Also I think I get how you are implementing the choice system in this game, my impression now is that the first choice regarding the condoms scenario is that it was a bit of a "tutorial", there was no wrong answer there but it served to introduce the matter of "trust" to Tatsuki's thoughts, which was definitely much more in question with the phone choice where I did feel there was a "right choice" and a "wrong choice".
Looking forward to future updates.