Sebastian moved into the Alberto mansion earlier than he'd planned to. When Maya's father heard of the glass breaking incident, he freaked out, sending numerous texts and thousands of calls. This particular act had left Sebastian in awe and in deep fear of his life.
Maya on the other hand became withdrawn, choosing to spend days in her room and avoiding everyone. Even though he was quite surprised at this reaction, Sebastian ignored this behavior, standing outside her bedroom to guard her during the night and leaving early in the morning. The mafias are never safe enough, there have been thousands of news, about them getting murdered in their sleep.
So,a whole army of soldiers might still not guarantee their safety.