Honestly, I think this is a large part in why my boyfriend (LDR) and I broke up. I couldn't handle him going out, staying out ALL night doing God-knows-what and not keeping any contact. We'd always talk before I went to bed (3hr time difference) or at least send a text... he would just VANISH when he went out. He would promise to text or call and I wouldn't hear from him until the next day. I'll admit, I went a little bat-s*** crazy at times because I was worried (and insecure).