Am I trippin?

So last nite my boyfriend cald me nd we talked 4 about 15 mins, than he told me he would kall me bak in 15 mins kuz he neede 2 take a shower nd I said ok. Than like 2 hours later he still hadnt cald me nd i got mad so i cald him nd his phone was busy(its his house phone) nd i got mad kuz it was like 10 at nite and it was busy 4 about 45 mins. nd wen i cald again nd it went tru he said dat he did call me nd i rejected his call but dats a lie kuz i dint hane any missed cals nd i asked him who he was talkin 2 for so long nd he said nobody 7 iaskd y his phone was busy & he said he dint kno. I think he was talkin 2 another girl n his lyin bout callin me, than i said y is he such a liar nd he told me if ima ***** 2 call him tomorow n i said no kuz his a ***** liar. U think he was talkin to some other gurl or am i just trippin 2 much???