Bf upset me help

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He doesn’t text me or reply much any more. I send him texts and snapchats like oh ur cute hope you have a nice night and he either doesn’t reply or sends back a picture of his puppy. Which was fine in the beginning I absolutely love dogs but a month of this is rough. I’m dating him and not his dog. I️ don’t ask for him to hang out with me often because he is busy with school and his new puppy ( a lot of work, I watched it for an hour and was exhausted). I feel like since I’m not hanging out with him nearly as much I used to he could at least text me two or three times a day. I told him this today, possibly too angrily and he got mad. He called it and me petty. I got mad and told him to just stop texting me if he was going to be like that. He then was like oh the irony and told me to grow up. I told him I simply wanted to talk to him more and would appreciate if he would reply to more of what I send him. How many seconds does it take to send a text? He spent Friday night gaming with the boys.... he ought to have time to at least text me back. I told him to just lay off for the night since I have an interview tomorrow and ended it there. He quickly switched tones and was like oh you’re nervous for your interview tomorrow that’s why you’re irritated. But I’m not nervous and irritated because of him not replying.

What should I do? He is not cheating on me I know that for sure. I just want to be acknowledged especially since he’s my boyfriend. I don’t know I’m just upset but trying to calm myself down. Thanks for reading.