Not necessarily. The fact that he wants to do it with you and introduce things that I'm guessing you're gonna use on him just proves he's getting more comfortable with you in bed. Toys can be a great to spice things up and change it a bit, and it's usually a good thing. If you have a dildo or a vibrator or whatever try handing it to him and let him use it on you.
If it's things he wanna use on you while you're out I'm guessing it's like a small vibrator that can be stuck down your panties and he or you have the remote to crank the vibrations up or down. This can be really hot and you can go out and have dinner and the entire dinner will be like a long foreplay.
As for he wanting to be fucked by a strap on it's not odd. Although I've never experienced it myself I have heard that a prostate orgasm can be very very intense and mindblowing. I say try a well lubed finger up his butt next time you're giving him a blowjob. You might find his reaction quite the turn on :)
So short answer; just because he wants to use toys on you and he wants you to use toys on him doesn't mean that he's bored of you. It's just some extra spice to add into the sex life.
An entry for the humour competition! I has it!
Now you can read stuff that's like.. all funny and hillarious and amusing!Choking the Blue Snake!!