Boyfriend is busy (19F/24M)

He started a new job about two weeks ago and has been spending more time relaxing by himself and we don’t talk as much. When we do it’s short and it’s been making me feel sad and unwanted, especially when he doesn’t acknowledge messages I send him like my artwork. Not to mention he keeps saying “love you” without the “I” which he didn’t do before. Would it be bad if I started putting in the same effort as him? I’ve been checking on him everyday, ask how he’s doing and what he’s up to but it’s starting to become tiring. He doesn’t initiate conversations as much as he used to. He’ll ask what I’m up to sometimes but he doesn’t seem to actually care what I’m doing. I think and care about him too much on a daily basis to where I procrastinate on stuff I need to do. Maybe he just doesn’t need my support at the moment.