Is this a red flag?

My boyfriend and I are currently in LDR and have been dating for a year. We have had some trust issues due to his actions before. Sometimes he will leave me on delivered for several hours while his snapchat score goes up by 100’s. He tells me he was watching netflix or taking a nap. I haven’t confronted him because I don’t want to sound bad. Any thoughts?
Is this a red flag?
Post Opinion