shortly after my wife delivered, we received a phone call from my elder brother who we haven't heard from for 3 years now. he claimed to have gotten a job in our town and needs a place to stay. I initially refused as my wife had just had a baby and we were already going through a tough time in our marriage but he begged that he would just stay for 2 weeks and afterwards would go to one of our other siblings across town. Needless to say, it has now been 9 months and my brother is still in our house refusing to go stay with any of our other siblings as he is not on good terms with them.

Since he has been here, tension has been building between my wife and my brother until they recently had a big fight due to the following reasons:
*since coming to stay with us, he has never bought N1 gift or card for our newly born son. this hurt me so deeply but I kept quiet.
*as soon as he began working, he started to ask that I take him to and fro work everyday despite seeing that my wife and I have not slept all night due to a crying baby. i would leave the house so early,drive him to his office before i start my own journey to work in this lagos traffic. by the time we get back home, I'm too tired to assist my wife with any house chores. when my wife got frustrated and complained, he decided to make her an enemy.
*I decided to air out my grievances to him in a respectful manner, but instead of understanding, he flared up on me and said I'm chatting shiiittt.
*we asked him not to take pictures of our baby but later discovered that he had been sending pics to family members who have refused to come see us since my wife put to bed.
*on top of everything, my brother would bring different girlfriends in and out of my house and even store the food that they cook in our fridge amongst the food that my wife cooks. of course this wouldn't be a problem if not for the fact that he is married and I happen to be very close to his wife.
*bare in mind that my wife would cook dinner every night and even pack the lunch both of us would eat the next day at work despite not having any assistance from my side of family.

my wife finally had enough and insulted him on one fateful day. during the argument brother recorded the dialog and forwarded it to our family members portraying my wife in a bad light. all the phone calls and embarrassment became too much. so last week, brother and I came home to find the house almost empty. my wife had packed her things and disappeared.
last night I received a call from her mother saying my wife and son are with her and shortly they would send my cheap bride price back as a christmas gift.
Please I'm completely shattered and feeling all alone in this world. bro is still in my house and is not moved by any of this at all. I overheard him saying as long as he's making his money and living rent-free whats his own"

Since I married my wife, we noticed signs subtle signs that my family dont like her.

From day one of introducing her to the family, my elder brother's wife treated her with so much disrespect and everyone else followed suit. We ignored this and proceeded to marry.

For trad wedding, I gave money to my parents to help purchase the items for her bride price but on the day,  I was pained to see that the items were significantly incomplete (my wife noticed this too and kept it in her heart). She later told me that she saw my parents looking bored at the church wedding;as if they couldnt wait to leave. I was surprised because I saw that too but thought my wife hadn't noticed.

When we fell pregnant, they failed to acknowledge my wife's pregnancy throughout until the birth of the baby. Furthermore, my mother failed to show up for omugwo, leaving us alone to care for the newborn child.

All these things have built up resentment in my wife. She takes out the frustration on me. Things are so bad that my wife has completely isolated herself from all members of my family. She refuses to communicate with them or attend any functions.

Recently, I got wind that she is making secret plans to abscond with our baby and go live with her mother who is based abroad. Please I dont want to lose my wife. She's the best thing that ever happened to me but I can see clearly that she now despises both me and my family.

The marriage is in shambles. She believes that I failed to defend and protect her. not that I didnt feel the pain. Its just that I didnt know how to handle the situation. Please how can I resolve this?