Marital problems

I have been married few years and there are problems in the marriage which I consulted the ulama, yet my husband continues his nasty behaviour. The problem now is that with regards to inlaws too, my husband refuses to mend the relationship, although having full power to do so, he rather avoids the issues and subjects himself to be in the 'middle'. He has always had this habit of lying to me abt every small thing, and I always find out the truth later on. It has come to a point where he even lies and says that he is going to do some work for inlaws but instead, he takes them out and enjoys the day with them, how bad is this? Please give me advice.