wht to do?

i am marriedwomen and living with my husband and 16yrs passed out tomy marriage but my husband is not caring concerned not a single percent divoted to me or my children. he is jeo aur jeenedo life he lives he is not at all concerned tht whr i go wht i am doing not at all giving any attention but the most important thing is i did not feel my husbands love still now when i understood hid nature i just stop my relationship then also he did not ask me what happened to you?3yrs i was away from him but living together just not having any physical relationship in between 3yrs i met to another men and now 2yrs hv passed wid him he want to marry me but i hv not taken divorce and even my husband also came to kno tht i am in love with another boy.the boy name is abhishek. as we r in seriously commited in relationship and we both want to marry each other i hv two kids also but abhishek is ready to except them.now what to do if i want to get marry him?