my first post... I'm emotionally drained

I was just browsing while we were on vacation and found this site.... i honestly never thought my husbands adhd could be the cause of our problems... but as i began to read ... it was like a movie of my life.  We have been married for 5 years.  I was married before and he unfortunately commited suicide.  I was young and we were not together for a very long time but still a painful thing to go through at such a young age (18).  Im going to jump straight into things because i honestly have no one to talk to about these issues....no one.... and i feel trapped inside my own head because i can not express my feelings to him.  He blew up at me earlier for flipping through pics to quickly.... I KNOW!  well i do what i usually do and just close down... and he just kept yelling and changing the reason he is upset.... i waited till i thought everything was calm and i asked him if he had any suggestions of what we can do to stop fighting like this........a little back story...... we had our daughters 2 years ago and honestly things have not been great since i was 9 months pregnant.  I have gotten to the point of recording him (for myself) because he just sits there and calls me crazy over and over again and wont even let me talk.... i almost believe him sometimes but most of the time i just give up, shut down and just close myself off...  i did that tonight... and i just feel bad for myself... i dont know how anyone would deal with it.... in the recording he just starts in on me telling me I cant stop????? i didn't say a word at this point..... then he just starts taunting and screaming at me... this is hours after our original argument.... i feel so tense in this situation... after he is done ranting and raving... then he proceeds to ask me if im finally done..... i honestly can't believe it gets that bad.... well okay we went on vacation and all was good until (honestly i dont even know why he was mad but i got the brunt of it ) he got bbq  well he just starts griping at me and then proceeds to tell me that im a piece of s***.... at this point i do the opposite of what i should do and i just start crying.... he absolutly hates that and lays into me more then....so he throws a tantrum.... the next day it is like it was all my fault.... but he is willing to forgive me..... ( our friend was with us and honestly it has gotten to where all of our friends are like "im sorry, he is getting out of control"  but why doesnt anyone talk to him? oh well .... we went to eat that day and he got a bit anxious.  I accidently knocked one of our children's cups over (it had a lid so there was no mess)  he stops gives me a nasty look and says, "im sick of looking at you"  all i can do is hold back the tears... the really mean comments have been flying lately.... two weeks ago he told me that he knows why my ex killed himself now....now why would any human being say that to another?  even though i know not to believe him.... i have demons in my own court from that one.... well luck would have it the next day i bump into my ex FIL  i havent seen him since my ex's funeral.... my husband is still throwing it in my face and is unapologetic about it and anytime i try to tell him how i feel i get "Stop living in the past"  Our arguments have gotten to the point to where it is just him yelling and arguing with basically himself while i just sit there...im just soooo  hurt and i read some things that may help and im trying to apply them but it is hard when he is so mean and honestly neither of us can tell you why he is mad.... his reason changes so rapidly.  He wants to get therapy and i fully support that!  i did the first time (bad experience the dr basically used him as a guinea pig for seraquil which my husband did not want to take he hated the way it made him feel but the dr barely talked to him and just handed him a script... not what my husband wanted)  i forgot to mention he is a drinker.... he drinks excessively.  im sorry i dont mean to rant and rave (which i feel like im doing) but im honestly just stressed and i have no one to talk to.... i hate fighting with him i love him so much and i feel like he just hates me..... he has such crazy mood swings.... he was diagnosed with adhd when he was a child and again as a teen and adult.... i think he may have a bit of depression too..... im sorry for ranting again i just needed to vent abit..... thank you.... -shan.... how does anyone deal with this?  im getting to the end of my rope.....