我有个房客不错,月月按时交租,住了一年了,最近跟她说每月涨$100房租,她说她知道涨$100不多,可是现在的租金巳经 at the top of her budget, but she will try and see if she can make it work if I need to raise it. 下一步应该怎么处理呢?接着涨,还是算了?现在的租金低于市场价$300到$400