You know the old sayings, "Talk is cheap," and, "Actions speak louder than words." In what ways does M demonstrate/prove that she loves you? It's an important question.
And when we talk about love, do we just mean, "Ooh I think W is hot and I like the attention he showers on me," or do we mean, "I care about how W feels and I will speak words and take actions that will help him to feel better." Two very different definitions for the same word -- an example of why I'm usually really cautious about using the word love. It sounds so nice, so noble, so romantic, yet in practice it can say everything and nothing all in the same breath. That word and I have a formal truce, that's about the best I can say for it.
Perhaps more will be revealed in A's conversations with M. Hopefully so.
Love means never having to say, "Put down that meat cleaver!"