6 years later - STILL confused with my Virgo man

So 6 years later, I am still confused by my Virgo man at times. We definitely haven't had the perfect relationship even from the start. We have a 4 year old son that he is GREAT to and since he was born we have continuously tried and made efforts for our family to work. He has insecurities with me (not because he has ever caught me cheating, nor have I, not because he sees that I flirt with the other sex, NOTHING) I think at times he just has insecurities with himself and is "scared" to trust and love someone. This past week we made a turn in our relationship. The first time in 6 years he told me has never been in love with anyone until me that is why he doesn't know how to act sometimes. I have always thought maybe he hates the fact that he loves me, like he doesn't want to feel a certain way towards anyone because he is scared. The first time in 6 years he FINALLY opened up to me how he's scared to get hurt by me and if I ever want to stray then please respect him and let him know ahead of time so he doesn't feel that hurt or betrayal. All while he is saying this in between he tells me "Don't think I'm "gay" or dumb for opening up to you. OF COURSE I didnt think ANY of the kind because I appreciated he was finally getting emotional with me. I have my insecurities a lot too because he likes to watch p*rn (our sex life is amazing btw so its not because he is not being sexual with me). Its my Scorpio nature that I get jealous and feel like I have to compete with the way women look like in those videos, or perform, etc.

Well last weekend he went to a strip club with my dad after we got into a dispute. I didnt fight with him about it. But naturally because my insecurities I made comments and questions about what he likes about them, etc. (Mind you when him and I argue he gets extreme and makes nasty and rude comments) When he came back from the club that night he was telling me how he fell in love their 2 or times. I didnt pay any attention because I know thats all he wanted - the ATTENTION. He wanted a reaction from me. Of course as things settle and I feel we can communicate better I asked him about the strip club again. He starts to get angry saying he is wasting his time with me because him and I will never work. Which might be the case... Its not what I want but all I'm asking here is:

HOW can he go from loving me one minute to saying its over the next minute?