She Goes Through My Phone When I Sleep, Now See What She Caused. Advice Pls

Hello All my name is mubarajk. This is a true
life story am about to share. I really need a sincere
advice from matured minds and no abuse pls
I am not Married but with a girl child. All plans to
arrange my marriage with my gal is slated for next
year. But I noticed that my wife to be and I are not
compatible at all
Ever since I met my wife to be in the year 2011.
She has been so nagging and rude to me. She
never obey me for once. We always quarell
Right from day one till this present time we have
been living a cat and dog life. She is a nagging
woman. She can't say sorry if she is right or
wrong and she is not submissive she disrespect
my mum anytime we pay her a visit.
She is not hardworking,and she doesn't have any
future plans.. She has never for once encourage
me in my career
I have tried to call her several times that she can
change and she will promise to Change. But later
she will put up her attitude again
She had a daughter for me out of wedlock and that
has been holding me from chasing her away of my
life
She is living with me presently
The first year I met her I was in Abuja and she was
in lagos
She keeps a lot of guys before but that has
changed. She no longer does that cos I fought it
Sometimes we quarrel and it attracts neibors that
comes around to settle our fights and this has
brought Shame to me
I told my mum about that and it gave her a lot of
concerns
I told her am enduring the relationship
And that I have made up my mind to quit the
relationship and let go that All plans by her family
to for introduction and engagement ceremony has
been cancelled that am no longer interested
Something happened last month between us
I noticed she has been monitoring me and she
always go through my phones whenever I fell
asleep
She will check my messages with my friends
especially girls
There was this lady we do chat always. But she
was not my lover and I don't flirt with her on chat
but since we always chat, she suspect a foul play
and unknowingly to me she has copied the girl
number and saved it only her phone in the
midnight while I was sleeping
Sometimes in the mid of the night I would wake up
and caught her going thru my phone
She has done that several times and I later
password my phone but little did I know despite
passwording
My phone she still have access to my chats and
data
I don't know how she hack into my phone despite
passwording my phone
So I woke up one day and I found out that she has
changed my profile picture on whatsapp to her
own a pics taken together by me and her holding
ourselves, I asked her who changed the dp but she
denied it...
So last week Friday I had a meeting on business
with a lady I do normally chat with which the lady
promised to pay me 100k to start my business
I so much like this lady because of her nature and
for her intelligence which my wife to be never had.
Tho I never discuss anything about my past to her
before... But I didn't tell her I have someone in my
life
My wife suspecting that I had a meeting with this
lady called her and told her to desist from me that
I am married...
Before I know the lady who promised to give me
100k to start my business blocked me on my
whatsapp
And I called her she told me someone called her to
leave her husband alone that in my life I should
not call her again, I tried to explain to her but she
cut off the line and hang up the phone on me
Now the business is over and that was how I loose
the 100k. Up till now I have not called this lady
Pls what should I do it seems am in love with the
lady but I want to call it quit with my nagging wife
as I always call her.
How should I contact this lady and convince her
Pls I need a good advice.. Thanks all for your time