<human>: Can you give me a shortened version of the text?

We've been dating three months. Sometimes he answers his phone and sometimes he doesn't, even on days that we have plans.

Today we had talked about spending the afternoon together before I had to do other things tonight, but never set a time. I text him. He doesn't reply for 8 hours. He was off from work and hadn't mentioned any other plans and it just kind of irritated me because we had talked about doing stuff and now it's too late in the day as I have other obligations.

I don't feel I'm being clingy as we only see each other about once a week due to conflicting work schedules. I guess I'm just frustrated that he does stuff like this on days we talk about doing anything and waits until late in the day to ever get back to me. 

Am I being clingy about the situation or is this a legitimate reason to be frustrated?
<bot>: BF sometimes doesn't reply for 8+ hours, even on days he has off and we had talked about seeing each other. Not sure if being clingy or not.