I (21F) would like to deepen the intimacy in my relationship with my boyfriend, who is 24, and with whom I've been for 7 months.

This is my first post, and I'm really unsure where to seek advice—feeling a bit down about it, to be honest. Here goes: I’m a 21-year-old woman, and I’ve been dating a 24-year-old man for seven months as of this Friday. Overall, things have been good in terms of avoiding fights, but I've encountered some personal challenges. For context, he spent five years in the military as a Marine. He’s the first military guy I’ve dated and also the oldest. I guess I expected a more mature relationship from someone older, but it doesn't feel that way. My main concern has to do with how he treats me. While he doesn’t mistreat me, it often feels like he views me more as a friend with benefits than a romantic partner. Our communication is minimal; I only receive basic texts like “How was your day?” or “How was class?” I know we’re both busy with school, but it feels like I’m the only one making an effort. Additionally, the way he speaks with me is the same as he does with his friends. The few compliments I’ve received from him have been sparse; he’s only told me I look nice and once said I’m a 10 in my state. I don’t mean to come across as vain—I'm not the prettiest girl out there, but I have confidence in my appearance. He never uses pet names like "babe" or "baby," and we’ve yet to express our love for each other—it makes me sad because I've been in love with him for months. It seems at times that he views me primarily as a monogamous partner for sex. However, there are signs that suggest he’s serious about our future. He planned for me to meet his family in Louisiana, but his car broke down just an hour away. He’s also begun talking about our relationship in future terms and taking steps that indicate commitment. My biggest concern, though, is the emotional aspect. Recently, he's started acting strangely regarding my devices, looking through my phone and watch. I have nothing to hide, but when I ask him about it, he responds sarcastically with, “You got something to hide?” This behavior leaves me feeling disrespected and untrusted, which is confusing. I genuinely want to deepen our connection and create a more intimate and special relationship, but I’m unsure how to approach this without making things awkward or pushing him away. **TL;DR** How can I encourage my boyfriend to be more open and affectionate with me?