Can anyone tell me what going on???

OK, I don’t know if anyone can help but, here’s the story. I’ve been seeing this man for about 3 1/2 years and every week on my days off (Wednesday and Thursday) he comes over and spends the night with me. I have very deep feelings for him, and even though he still doesn’t want to get serious, I am very much in love with him. Now about 2 weeks ago he came over early in the day, stayed for about 30 min, said he’d be back over later that night and I haven’t seen him since. It’s really weird. I still have most of his clothes and several of his personal possessions at my house, so I can’t see him leaving all of that behind. (He has his own key to my place so if he wanted to just sneak in, get his stuff, and leave…. basically cut his losses without any confrontation, He could have done that already) I just don’t know what happened. (He lives in another city and my truck doesn’t run well enough for me just to go and find out) I mean did I do something wrong? Is he gone for good? Is he in jail? Is he hurt? Did he find someone else he rather spend his time with? I don’t want any confrontation either… I just want to know what’s going on. Should I just forget about him? Is he coming back? What happened?? I feel empty when he’s gone…..lost, ya know? My birthday is 11/13/65 and his is 7/30/71 Anything you could give me on this would be very much appreciated. Thank You.