Need to vent a little

Little back story my husband and I have been together for 3 yrs now we are in are 20s . We have a 16 month old and a 2 month old. Well in the last 4 months I have not been into having sex. ( I don't like birth control I have tried many things and well it all makes me so sick) anyways my husband works a full time job and he started working overtime. Well I started getting worried so we both have iPhones. So I turned on his share my location. (I know  it is bad but I did not tell him) well I thought he would just be at work and home well that's not that case he has been saying he works an hour + of overtime a day yet his location says he is not at work and he is not home he is at someone's house. I asked his only guy friend if he worked overtime the last 5 weeks or went to his house Well he said my husband said he was going home right after and could not hang out. I dont even know what to think so I logged into his Snapchat and it's all girls. And they talk a lot. I don't know what to do Or what to think. He does not help with the kids. He erases his messages. And now hiss his phone. And he uses my car so I am careless all day.  Are 1 yr wedding anniversary is next week. I don't even know what to do I don't think I make him happy anymore. I am thinking he is pushing me away. I just don't know what to think. It makes me so sad. Do I ask him if he want a split or what he refuses to go to counseling.