Can Treated Chlamydia Infect With Unprotected Intercourse?

Hi, I m a 19 year old girl living in Sydney, Australia, and about 10 months ago I had unprotected sex with a friend of mine, however he s from Italy and he s 25. I was drunk at the time, and although he didn t take advantage of me, I was very angry that we didn t use protection, this was the first time I haven t. He however did not ejaculate inside of me, I know that for a fact. We worked together for months and I ignored him for so long as I was so angry, despite his constant efforts, but over the last couple of months it really started to daunt on me the risk of acquiring a STI. I have had severe anxiety and stress, and also so much anger, I m usually so responsible and I can t believe I let this happen. He moved back to Italy and I contacted him a couple of times, and each time he was been very honest and nice and said he gets checked up every 6 months and he got checked up a couple months after me and he was fine. He also admitted to having chlamydia and syphillis in the past but he was competely fine now after quick treatment. This relieved me for a bit, until I read online about HIV and all these terrifying stories so I contacted him again a couple months afterwards. He said he just got checked up and he was completely fine, and when I asked about HIV he replied, Wtf, are you crazy, for that I always check myself. I don t know why he would lie to me but still that anxiety is always in the back of my head. I ve read countless statistics that it is very hard to contract HIV from a one off occurance, also I know for a fact that I did not have any stis that would cause open wounds, and he also did not ejaculate inside of me. It was also just vaginal sex. We talk alot now, just about everyday things, and he has always said that if I ever travel to Europe that I can stay with him. He also had a girlfriend in Italy as well. Am I going crazy thinking that he could of given me HIV? I mean, he lives with his parents, has a girlfriend and always has huge aspirations for the future; I really don t think he would have the intention to intentionally infect someone. This seriously has given me such severe anxiety that I cannot think about anything else- I have finally scheduled an appointment for a check up tomorrow, do I even need to ask for a HIV test? Thank you