Could use some advise

I've been married now for a year and a half. So not long at all. We are having some massive issues and I could really use some advice. First my husband was talking to other girls. Then joining dating sites. Then he mentioned the possibility of us having a poly relationship which he ultimately decided not to. Now recently I found out he was talking to a couple prostitutes. Those never went through but mainly because he didn't have enough cash to actually do anything. All I get from him are excuses and lies. He's an over the road trucker and only home 6 days a month. I'm not a sexual person like at all. Most of the time I wish I was so he wouldn't need to find it other places. I just don't know what to do anymore