How do i solve my problems with my dad? listen to the details?

my dad has been hurting my feelings lately. my parents were divorsed and are realationship is getting worse. he never has a job and lives with my auntie brenda. she has 2 kids and a husband. my dad also smokes and i hate the smell. he almost never pays child support. he also sends me birthday presents 6 months late. a present os no big deal but he sends them to my sisters. sometimes. he lies and sais my moms on drugs. he takes her to court over custady. when he would never support us. he wnts me to come down there this summer but im scared. im angry with him for lying and never even calling or emailing for like 4 months and all the sudden he starts talking. i stopped talking to him like a month ago but hes begging me to call him i dont want to. he might lie to me or try and convince me to come down there when i know i shouldnt. i know i would be uncomfortable. so what should i do. go down there? talk to him? please i need advice