My Boyfriend doesn't say i Iove you anymore!):?

okay so I'm in a long distance relationship. I love him so so much it's crazy.we just saw each other cause I went to visit him and we were perfect!!!! kissed eveything!! he is even comig to stay at my house in a few weeks! but the thing is,he gets in these weird funks while texting almost evey day...he barley talks,does t really say I love u,and he just seems..idk...like he doesn't love me): then every other day he goes nuts for me! I'm so confused..does me love me?...): or not!?I'm 15): I love him...so much..he's my world