Needing Husband talk advice

So long story my husband and I have went through a mid separation then decided to give it another try.?well during our separation which was only about a week and a half he got with a girl started dating her then decided that it wasn’t gonna work with her and that they were just going to be friends/coworkers. Now that he works with her and sees her every day or night whatever now he also goes to her house which is like five minutes from the job site he tells me there’s nothing to worry about?it just hurts me because he’s gone almost all day then he decides to go to her place and hang out then doesn’t come home till pretty much bedtime. by the time he gets home he’s ready for bed so my feelings are hurt because I don’t see him. End it feels like she gets more of his attention than I do. What do I do?