Is my s/o cheating

Erica
Call my significant other yesterday at 12 noon no answer called all the way up until 6 no answer he decided to finally call me back at 6:30 stating that he was with his brother house hunting and that he was walking up the street saying that he had his brother drop him off a couple blocks over so he wouldn't know where we lived I was outside sitting on the deck now all the sudden someone comes out the back door and it's him my significant other I'm looking like what did you come from I didn't see both of the side door I didn't see you come around the front he said I was talking to me for a little while didn't he got up after about 10 minutes and went inside I stayed outside after a couple minutes I went inside as I had to use the bathroom I go in the bathroom the bathroom floor is wet and I look around the bathtub is dry the wall is dry but my bath sponge is soaking wet and dripping water and I noticed my Bath & Body Works shower gel on the bathroom sink when it's normally in the hall cabinet I go in the room he sitting on the bed he changed his clothes the clothes he was wearing was not in the dirty clothes basket was not in the closet hanging up so I decided to look for them couldn't find them anywhere they are not in the house but I did find the t-shirt that he was wearing and it smelled funny and in my mind I'm saying if you taking your brother around to look for apartments in our neighborhood why would you if you didn't want him to know where we live am I losing it or is this a sign of a cheating man I feel like he washed up with my body wash to cover up the smell of another woman what do you ladies think am I losing it