Complaint on messages

Dear kanoon! This is the thing happened 6 months back is on December. One guy helped my sister when she met with an accident and asked my mother and myself ( I'm male) to visit his house and see her. We (me and my mother) went to his house.my sister is angry on my dad for some financial reasons..my dad asked me to advice that guy to my sister to talk to him( dad) but after that suddenly he started abusing me to go for some job( I'm jobless still studying) and abused my dad's behavior as he might have second setup so he behaving so bad with his own family. I didn't say anything.. I bore all the words bcoz my sister there in his house.. I lost his number after 4 months I got his number and messaged him abuse that as he abused me and my dad..He told that he file police complaint against me if I text again. I messaged only two times..is his contention valid..and also as he abused me between walls in house there is no proof..can I defend against him if he book political complaint on me..and I messaged two times only