Abatement of Suicide in case husband committed suicide

My Ex-husband killed himself 1 1/2 years ago by hanging. He has no parents only siblings. He lost his job and was searching for the same for months which made him depressed and he killed himself. He worked abroad before so we mostly lived seperate.. me in india and himself abroad. After returning too i was studying so we were seperate. It was him who insisted(actually forced) me to study,Suddenly he killed himself, day before his death i visited him and we had small fight. nothing serious. FIR report said it was his own act no one was reason. He did this in his native. My ex in laws are rude people, so i am often worried they might file some case against me and sabotage my life. Kindly clarify me. Only now i have decided to move on with life and get remarried. I am 29yrs old. But this doubt prevents me.