My brother in law is not lifting his cell phone when I am calling.?

I have been married to a lady from district who is not as per my liking. My marriage is a forced marriage. I was not prepared to marry but was conviced to marry. I tried to convince my grandmother (wifes side) that i donot require marriage so early but she did not agree she was suspecting that I was not fit to marry. After marriage to my luck my wife found to be fat and bulky. It is now 24 years passed to my marriage but I am passing days with her . I have got two children. my daughter got married and my son is still struggling to come out of his depression. He is an engineer in electronics. Since recently my brother in law who is one among three brothers is not lifting phone when I called. I called him for almost three times. I wanted to purchase a plot in the district where he is staying. Now a days season is going on for his business even then when he is attending to all other work he could have spare time to call me. He is the only brother in law to whome I speek the other two brothers are not in touch with me. He has purchased plot in district where as he did could not arrane for me one which I wanted. I also wanted him to meet one person on my behalf and give that person some amount to for attending one job but he could not spare time to do that instead the money was refunded to my wife on her insistance saying that the work which I gave to that man is not necessary and money is required for other purposes. Now I am asking my wife not to lift the phone when she receives calls from her mothers place. How to convey that I am angry on his action and he sjhould not repeat again such mistake. He could have lifted phone and talk plitely and tell me reasons why he is not willing to attend to that work. My father in law is a strict person and he always thinks about buisness . He is a selfish person. He came to my house to fix my marriage with her daughter and was in too hurry. My father and mother were not too aware of the things they thaught that the relation came from a welthey and reputed person and as my father in law is cousin of my mother they agreed for realtion and also insisted me for it. They never tend to see the girls how is she. Now yesterday my wife told that she should have been married to a welathy person but for the mistake done by his father. I am living with her just beacause I have to pass my life somehow. I donot want to divorce . Even thought it s my deep desire to go for second marriage It appears difficult becaue of I may not be able to maintain second establishment and also being a govt servant it require dept permission. I can marry without dept permission but i need suitable relation. I cannot keep that girl with me and may be I may not be able to finance her as per her requirement. However I did not give a try to second marriage so far. I think I shoud gather courage to do that. What should I do with my brother in law so taht he should talk to me. I am arroung 50 now but still I feel taht I am sexually active. Any suggestions.