My question involves a roommate in the State of: Florida

I moved in with a friend last August. We were both on the lease and were paying everything 50/50. In January he moved his boyfriend in and in February mine moved in as well. Neither was on the lease. Before anybody moved in we agreed that no tobacco or illegal drugs would be used on the premises. By March my roommate's boyfriend had begun smoking pot on the property. In May my boyfriend and I moved out, but because my roommate didn't make enough money to only have the lease in his name and his boyfriend didn't work, the apartment complex would not let me off of the lease. On June 1st I paid my roommate 1/3 of rent as agreed. I found out two days ago that he never paid the rent and was evicted. The apartment complex realizes that I did everything I could and so nothing has gone to collections on me, and I will not have an eviction. My question is in regard to the 1/3 of rent that I gave him that he never used to pay the rent. I asked him about it via text and he said I would get it whenever I get it. He has bills to pay that come first. I tried calling the police department and they said it's a civil manner and basically to handle it myself. Any idea what my best plan of action would be? Sorry it was so long winded