Is it okay to be a little annoyed?

I'm dating this guy from college. We've been together a little under a year. Over this summer, his texts are dry (but he's not the best texter anyway), he never snaps back on snapchat, and rarely calls. Maybe once every 1-2 weeks. I feel like someone else has his attention, and if that is the case, I want out. I didn't want a relationship to play around, I wanted the trust and stability I thought I was getting in the beginning.

As a significant other, I at least expect some interaction. That's not too much to ask for, right? We are both busy at times, but it's not like I constantly spam him. I may snap him once every few days (to receive no response) and I let him call me. At least give him some initiative.

The thing that kinda hurt me was yesterday, around six pm, I send him a snap with my face and a caption, "Hey, how's your day goin?"

I want to start a conversation, see what you're up to, how are you.

He JUST opened it about six minutes ago and didn't reply. Didn't explain why he didn't open it. Didn't apologize for overlooking it. Didnt acknowledge it in the least.

This is me trying to talk to him. Me trying, him not. I feel like of you're in a relationship, communication is just the basic necessity, and I feel shut out.

I literally thought before this summer started, this was the trustworthy man I was going to marry. I thought he loved me just as much as I loved him. I feel unbalanced. I let him call the shots in the beginning because I was scared of exactly this...putting my all into it and not receiving anything back.

Want to know something funny? He's met my parents. They like him. I haven't met his, and we're nearing a year. I've had the chances, but he didn't want to take them.

Now he's back at home, hours away from me, where no one knows he's in a relationship. And he's seemingly losing interest. So, girls, you getting the feeling I am?

Just to add a little bit: Yeah, no, he doesn't have a summer job. He has online classes (like I do). He's an only child, so he isn't taking care of siblings (like I am with my younger sister.) Otherwise...his time is relatively "free." Lately I message him or text him and I get the "busy" thing. Busy with what? I made time for you out of my day. Why can't you?