I don't believe it's possible to spoil a child with "too much love."
Where spoiling starts: failing to follow through on reasonable rules and instructions, rewarding/bribing to get a child to behave, giving in to every demand by the child, even the inappropriate ones, or giving other special treatment designed to manipulate the child emotionally or physically.
A 22mo child won't play "with" other littles. At best, he'll be interested in them and whatever they're playing with, but he'll play alongside them. Real social interaction won't start for quite a few months yet, and this is normal. It's good that he'll interact with older children – they are more likely to take a personal interest in what he likes and responds to.
To help him become more comfortable with your friends, it will probably help if you are interacting with him and them at first, and then gradually withdraw a bit so he's interacting more directly with them.
But his desire to keep you in view is very common at this age, when many children experience separation anxiety. He probably doesn't know that when you're out of sight, you still exist, so he's not absolutely sure you'll come back again. It may help him if you repeatedly tell him, when you leave the room, that you'll be right back. If he hears that over and over, and you show up again as promised, he'll gradually come to trust that you will come back to him, as promised.
I think he's a lucky little guy if you take the time to interact with him playfully. Play is the primary mode of learning for young children, and you're stimulating his little brain to grow optimally.
And receiving love from one source doesn't block it from other sources. His capacity to receive and to give will continue to grow as he matures. Right now he's still pretty much the center of his own world, and only understands his own needs. You'll see that begin to change a lot in the next couple of years.