Relationship Advice 😣

My boyfriend and I have been together for 2.5 years now. We are high school sweethearts and he’s my best friend. Recently we feel like the spark is gone. We have been fighting because he has no motivation for anything. He failed out of his first college and he is on academic probation at his second one because he doesn’t show up. He doesn’t go to work anymore and has been disrespectful to my family. I feel like I can’t be with him long term. I love him but I don’t know what to do to get him motivated.