If the true question is "Is he available and open to a relationship with me?" then I would say no. He/Venus is not in good shape in this matter, with Venus being in its fall. And he is not receptive to you, since you/Mars are also in the sign of Venus' fall. Your primary significators separate rather than approach each other. Moon applies to a difficult square.
I would not put too much energy into this one.
And as an aside, if you want to know if someone is single, or if he has a girlfriend, why don't you just ask him rather than casting a chart? One's relationship status does not seem like very classified information to reveal if someone is starting a new relationship?