So my younger sister met a guy from Australia. He came to visit in October and everything went great until he got back home. Once he was home, he called her and told her he didn’t think things would work out and he was not sure that he wanted the relationship anymore. A few days later he told her he was “just tired” and didn’t mean what he said and of course, she forgave him. He then planned a trip to come back for 5 weeks over Christmas. He arrived and immediately started acting weird. He then told her he still talks to his ex and “hoped she was mature enough to handle it” and suddenly all these lies came out of things he had been hiding from her. He completely snapped and told her it was her fault he acted the way he did. Then 48 hours into his 5 week trip, he left and went back home to Australia. My sister was heart broken. I went to her apartment and she vented and cried. She told me everything he did and I was furious! Needless to say, she took him back and when I called her out on it and voiced my concern she freaked out on me and now will not speak to me anymore. She refused to attend my mom’s birthday because I was there and no longer wants anything to do with my baby shower. I told her she was making a mistake and needed to be careful and she freaked out and told me to mind my own business. I get it is her decision but she is my little sister and I care about her! I don’t want her to get hurt again. I tried to reach out to her and apologize but she will not answer me back. Any advice?