My boyfriend like to play 3D, play station games instead loving me?

Hi, my name is pooja and i am a bca student. i have a boyfriend for 4 years we love each other very much. Earlier, when we were in class 11 we started a relationship he propose me after 2 years and i said yes because i was also waiting for the same. He is smart, intellilgent but the quality which attracts me is instead of being a proper geek he gives me a lot of space at that time.

To continue our relationship more further we decided to take admission in same college and give each other the quality time. The problem is this after the end of 1 year, he lost his interest from studies means he was a topper before and know he is just an average 60-70 boy. Also, he start liking 3D games and these play station and all. The time which we decided to spent with each other to share our feeling and love know he give to these games.

I dont want to fight with him. Please suggest i console him too many times but he is still the same.

What should i do?