Wow, I am sorry your going through this...
Do you still love him? I guess, IMO if he is texting all these girls..going to bars late at night all night-lying to you...Is this really what you want in your marriage? Maybe think about some boundries to make.
I think looking at his phone and knowing he is texting all these woman would just make me go crazy, he is your husband-He should not be cheating on you physically or emotionally.
I just feel your pain and I would find a plan to leave if I was in that postion. Do you have kids?