If you want to work something along with the jar, you can do a spiritual bath, a mojo bag, things like that, you don't need to do a completely different spell, as well.
The best thing about honey jars is that it won't work if that person doesn't have some sort of feelings for you, it enhances already existing feelings and sweetens them towards you, so it's not going against free will. Just make it clear in your intent that you want him to communicate with you, to give you another chance to start over, to love you, commit to you, whatever it is you are looking for with the spell. As long as it's in your intent and your intent is clear, your jar will know what it's suppose to do.
I would definitely stay away from Intranquil Spirits, they aren't reliable. A lot of times I've seen people mention they used Intranquil Spirits, they'd end up doing things they weren't suppose to do or taking too much energy from the person casting the spell. It's not something I'd recommend, anything involving spirits, angels and demons, I steer clear from. Not worth the risk :)