(Advice Needed): My Brother-in-law Touches Me Inappropriately!

Dear Tee,

I am 40-year-female. Last year, my brother-in-law(husband’s big brother) lost his wife in an accident. A day after her death, he started to behave in a very strange manner. He started touching my hand, got into the habit of checking my mobile and searching things on my phone without my permission. I felt very uncomfortable at this sudden change of behaviour and stopped talking to him. Now, my husband is really angry with me and says that there might be some misunderstanding. I want to know if my instincts about my brother-in-law are correct or my husband is correct?