Cny Visiting at my In-law and Relatives

Single Mummy going through DIVORCE. I have one child who lives with me. My rasacal husband has not visited my child and myself for almost 1.5 years. My MIL has invited me and my child for reunion CNY dinner and to go visiting. Dont tell me Mummy out there feel happy or awakard?? Please guide me: 1) Must i need to give Hong Pao/oranges to both FIL and MIL?? 2) Elder relative invite, must i need to give mandarin oranges?? 3) Do i need to bring some kuih or bak wah?? 4) my ex husband so called never even go cny last year. Fucker hving fun with mistress. 5) must i still need to give hong pao??