I'm sorry to go on at you but a 14 month old wolf mix is going to take advantage of your "spoiling" him and you are running out of time to be able to control his behaviour. He is coming up to the teenager stage of life and will begin to take the "spoiling" as his right in life. If he has these rights he will begin to see how many more rights he can get from you. If you allow him to continue then he will feel obliged to discipline you in the future, there are signs that this is already happening.
Please get in touch with others that have wolf mixes, there are many sites on the web, get some advice and get this under control. Ignore those that insist there are NO PROBLEMS as they are either lying or do not have true wolf mixes.