Is there a chance that he's not interested in me anymore?

Hmm that is interesting. Maybe just confront him about it or say something along the lines of 'i feel like you are distant, did i do something wrong?' and then you can bring up this situation here and others if there are more with other girls. Don't jump into anything saying he isn't interested in you anymore, just with all of this hectic-ness going on with the moving, etc. it might just be a stressful time. Who knows? My advice is to just ask him about it. Hope things work out! :)