Why is he acting like this?

so these past few days have been really bad, first of all my mom found out that i have with my bf. so i have to get a papsmear next week also we had one night and the next morning i was bleeding i still am and we don't know why since my period had just ended the sunday before that. i'm freaking out that something bad will show up on the papsmear and that he won't treat me the same after. i'm really stressed out about moving out soon and going to college. he's gong to join the sir force but he has a semester longer than i do before he leaves. i'm worried about all this stuff with moving and getting a papsmear that come back with something, i want just a few days with him before summer ends and that means he would come over to my house but everytime i invite him he comes up with some excuse like it takes too long or costs too much on gas or he doesn't want to leave his room unattended with his brothers in the house. he doesn't even seem to care about my stress. he says i'm thinking too much and its not that big of a deal and to stop it but he doesn't hug me or tell me he loves me or anything like i would wish he'd do. why is he acting so weird? he's never usually like this?