Im having boyfriend issues again. Break up or not?

My bf and I were good friends for 2 yrs before we decided to start dating. We saw eachother everyday for a little while like maybe 20 mins in the mornin (went to the same school but I was ah sr nd he was a jr) and throughout the hallways. Txt eachother all the time. Exchanged "i love you's" nd all tht Then on weekends we used to hang out and have quality chill time. Now i hav graduated. We had like the best chill day on my graduation. Since then he got a job nd now its like I dnt exist to him. Im not ungreatful b/c he has ah job. At least he's not bein lazy BUT he doesn't txt me as much at all. I'll get one txt every 3 days or so if tht nd the convo lasts like 2 minutes b/c he stops responding. He doesn't call or tlk to me on the phone anymore. So i talked to him about 2 weeks ago. He said it wont always b this way. Ugh all Im askn is like maybe ah txt in the mornin ta say hav a nice day or sumthin. I always send him lil msgs or i love you's but now n days i always hafta say it 1st. Im startin to think he doesn't love me anymore. We live in the same city but on two totally opposite ends of it (kinda long distance). This is only a summer job but soon ill b busy with college AND a job. What will we do then? Should I end it or continue stressin out over it hopin it'll get better? Thnx..