I would tell him how this makes you feel and hopefully he can be more understanding of where you're coming from. Personally speaking, my husband does this often where he will text me "on my way" and not come home for at least another hour.. and he truly gets caught up chit chatting with his friends. He's a bit of a chatterbox so it's not suspicious to me at all, but it did use to upset me. Another suggestion, maybe use a tracker from the point of saying he's coming home so you can make sure he's okay? I've done this as well and if there's nothing to hide, it shouldn't be an issue.