Paul's return isn't RLC's choice, it was Leora and Paul who decided to get back together as a couple. It was Leora who wanted Paul to come and stay in Prague and Paul accepted. If it had not been Paul's will to leave for Prague, everything would have remained the same. It is very different from taking a random man and putting him in a mansion.
If L&P is fine this way there isn't much to complain about.