Do you think I am jumping to conclusions?

Ok, me an my boyfriend live together he tells me yesterday, that he wont be home thursday because he is going to reno for a convention for his job, he tells me wensday, ok today is thursday and he leaves home at noon to go to reno for a 6pm convetion ok, I am ok. I get a call from his job at 5 saying he is suppose to close and ware is he, he told me that his supervisor was covering for him. I called the hotel and they said there was no convention at 6pm but one at 4, also I asked just to humor myself and he had a damn room rented in his name, he did not answer until 7pm. I asked him why he rented a room he said to take a nap, ( yeah right). Oh, by the way clue number 100 he gets a call at 5am he says wrong number from reno area code. Do you think I am reaching when I say he was there with someone?