How (and who) to expose if OP is not married

[4luv]

i still have not spoken with husband. i texted him to ask him to take son to daycare. it is snowing here and my wipers on my car do not work. husband was also suppose to take me to drop my car of at the body shop and then get a rental today but i still have not heard a word from him. i talked to his mom and she only talked to him for 2 minutes and said that he was being very secretive. i am feeling very angry and sad. I didn't say or do anything to deserve this type of treatment. To just up and leave me with our 9month old baby in an area where i do not have any type of support system. Also, i have to go out of town tomorrow for my job and last week my husband made arrangements so that he would be able to watch baby at night instead of having to go to work. Now I don't even know if I can count on that. i am suppose to leave around 430am and wouldn't return until about 10 or 11pm at night. I am just in a state of shock that this is day 2 of no contact from husband besides two text messages from him yesterday. below was our short text convo:

Me: I am in a bind and have to turn in a presentation to my boss before the end of the day. i need you to watch son for a few hours.

husband: I am not

me: no reply

husband: yesterday when i had him you rushed me home.

me: i don't like to text on this phone and would rather talk. I was concerned about son being out when he was sick the day before and i thought we both agreed to him staying in the house.

husband: no reply.

it seems as though husband is soooo angry with me right now and I have no idea why. just the night before he walked out on me he is crying and apologizing and telling me that none of his bad decisions have anything to do with me and that i haven't done anything wrong. but then the next day is furious with me and walks out on me with no contact since. what did i do? is he really that upset because i responded the next day about some of the things he talked about the night before. is he upset about me being upset because he took our son out? even if so, i didn't know that it would set him off like that.