What is your breeding set up like? I think someone asked that but you may have missed that question. Also what foods do you have prepared?
In my humble opinion, I don't think your necessarily ready to breed at all. You said in your first post you didn't even know what vertical stripes on a female meant. If you don't have a basic understanding of betta body language how do you intend to know how the spawn is going? How will you know when the female is actually stressed out and when she is just exhibiting normal spawning behavior?
Also.. you seem under the impression that your male is lonely. Your male is not lonely, he does not need a "girl friend" or any other fish to be happy. All he needs is clean water and good food to be happy. If your betta is acting sluggish and seems "lonely" that could be an indicator that he is not as healthy as he should be. Bettas are incapable of feeling lonely or depressed or missing other fish. They do not have the mental faculties for those emotions.. plain and simple.
I'd like to mention also that it is perfectly fine to spawn fish within a couple days after being shipped IF they are well conditioned and not stressed. I've spawned fish soon after getting them with no trouble whatsoever. HOWEVER... in this case I don't believe you are actually ready to breed. I'd still like to hear more about your set up first.