You can try to find a job, and you may be too busy to look at your mobile phone. And now many companies don't allow you to play mobile phones at work.
You're a little too worried. I guess you've just been together for a long time and are used to being bored every day. Milla can't get used to it as soon as he leaves. Just get used to it.
Boyfriends and girlfriends who have just fallen in love are like this. As soon as the other party left, they felt uncomfortable and didn't know what to do. They are full of him, especially the last sentence you mentioned. They have lived together, afraid that others will take away your boyfriend.
Don't be afraid, you won't be able to take it away for a while. As long as your boyfriend is kind to you, loyal and honest, others won't take it away so easily, so don't worry.
You'd better find a job by yourself, leave some space for the other person, and don't rely too much on him, otherwise there will be contradictions and separation in the future, and you can't stand it.
Love is like sand. The tighter you hold it, the faster it leaks. Only if you hold it tightly, it will last longer in your palm.