boyfriend trouble

Hi girls!! I have been with my boyfriend 8 years. We used to work together at the same company but he found another job two months ago and he has been acting strange. When we have sex he uses a condom but i have notice that he has different types of condoms. The last time we had sex i counted how many condoms he had in his drawer and they were 6. This Sunday i was looking from a phone charger in that same drawer but i notice that he only has 3 left and we havent have sex since two weeks ago. Since he move to the different job he does not want to go out to places with me. And if he does he always wants to go out town like we have do drive an hours or so to go out. I just thing all of this seems suspicious. And he is constantly telling me that im cheating on him.