warm to someone        
phrasal verb with warm verb [ I or T ] uk/wɔːm/ us/wɔːrm/
 (US also warm up to sb)开始喜欢上(某人) 
to start to like someone
  I wasn't sure about Sarah at first, but I warmed to her after we'd been out together a few times. 一开始我不太确定是不是喜欢萨拉,可后来我跟她一起外出约会了几次后就对她有了好感。