I understand your feelings concerning Mai Tai and I recognize the insecurity and the anxiety that you are experiencing. You are doing very well with him so far and letting him start coming out is a wonderful thing to do for both of you.
I know that lovebirds should have a friend, just as Pajarita says, but I think that I would wait a bit and allow some time for the bird to bond with you first. It really won't take all that long for the bond between the two of you to develop and for him to trust you. I can't say how long it will take as it does vary from bird to bird , but I really don't think that it will take all that long. Then you could find a bird that is suitable for him and although the bond between the two of you will change, it should remain intact. On the other hand, you could go ahead and get a second cage and get the second bird and after quarantine introduce them and if they bond work on gaining both of their trusts and work on bonding with both of them, but it is much harder to get them to bond with you when they have a friend of their own species and will take much longer.
The thing about toys is that in the wild birds don't actually have toys and the toys that they are given in our home become objects that they use to learn their fighting skills with, these they attack and attack and bite and destroy and it is a good thing as they are learning this to protect, themselves, their mates, eggs, nest and babies, so it is a natural inclination. Other toys are food sources which we refer to as foraging toys. They can get pretty elaborate as well as expensive and yet with both of these types of toys the simplest ones are often the ones that they prefer the most. A foraging toy can be as simple as a treat wrapped in a corn husk that you get from the grocery store. A simple destroy me toy can be a small cardboard box or a crumpled up piece of paper. We very often need to teach the bird to use these toys as they usually have no idea what they are and more often than not are afraid of them at first. So you make the toy and play with it in front of them, put it down where they can see it and still feel safe from it and then come back and play with it again and when they show enough interest in it you give it to them.
You mentioned that you don't think that Mai Tai currently eats any fruits or vegetables. Again if he was not taught to eat them than it falls to you to teach him to eat them because he really does need them if he is to remain healthy. This is probably one of the most frustrating things to teach a bird and it is a process that can take a very long time before even the first success. How difficult it will be depends on how old the bird is when you begin as well as the species of bird and the birds own personality.
The best time to introduce them to new foods is in the early morning before they get their breakfast. you should prepare a small amount of the food for them, with a fresh, raw fruit, a vegetable and a leafy green. You would then talk with your bird and show him a small piece of one of these items and after he sees it you should eat it without offering any of it to him. You need to repeat this process until it looks like he is demanding that you share with him and then give him a small piece of it. He may or may not eat it. Repeat this with all of the items and when you are done place his dish of them in his cage and give him his breakfast at the regular time.
I hope that this will help you and Mai Tai.






