What do i do?

iI been in this relationship a total of 7 years. 1 year into the relationship we started living together. 4 years into it we got married. He's always been the same man as before but worst. I Almost feel as it is my fault for allowing my life to be this way. At first I thought it was just my nature my personality to grow to love someone. I have the worst habit to find some good things in someone and then stick through it thinking this is the light for them.

Quite frankly I really don't think he respects me even if he does I don't really think he takes me serious. I feel like he's constantly stepping over me and doing the bad things on purpose. I'm constantly having to deal with whenever he goes out he goes alone specifically to bars then he stays out past closing times, sometimes to 6am. Or sometimes I'm the one that has to find him and bring him home or else he will be drunk sleeping in the car. I never really had a problem with the going out but it became so consistent and just sooooo over the boundaries of when a person should be home that it got me fatigue. I'm honestly just heartbroken it's a lot to write in one thread. Just he has constant need to want to go out and find friends. Yesterday was the first time ever where I popped up on him at a location and he was talking by to a girl at a table. I don't know what he said but I thought from a far he noticed me I guess he didn't it wasn't until I came tapping on his shoulder where he turned around and looked at me and then continued to talk to this girl. It was loud so I don't know what was necessary told. Then he proceeds to sit across the table away from her but with me in the middle. I'm left standing there like are we just going to stay here of are we going to leave. Then the girl proceeds to look at me and started questioning me if I knew her. I didn't know if she was defensive or trying to rile me up. I told her I didn't know her. During this was just awkward silence then got up and asked me if I knew her and if this was my man I said yes and she she he was hitting on me. Then she went and sat down. After that 2 guys proceeded to come over I don't know if those were her friend. But one of the guy was telling me that I should leave him and to know my worth because he's out here doing this to me all whiling telling my man that he needed to be respectful to me. Idk how I feel about this whole situation. I don't know what to think of it. Apart of me is just so fatigue to having to deal with a situation like this. Other situations happen before and it makes me feel like am I being dumb for staying this long. But as you all know sometimes it's much harder to leave. I think because I was so hopeful and I don't know what's it come down to