Hey Lilla, welcome to the forum. Seems you’ve already gotten your feet wet in testing, nice work. Your intent is also clearly defined, so that’ll help a lot in any further guidance users have to offer 
First: Being a putative, the idea is you test p91 solo and report back with Your observations. A quick search though reveals that p91 can be a sexy, social, engaging, and some report energizing mone. Like a social lubricant…
Second: It sounds like you picked a great combination to start off with. IS/A seems to fit your personality/the type your guy responds well to, and IS/IH are both very well established in the “sink your claws into them” attraction.
What you seem to be after is a bit of “fallout”. If you’re unfamiliar with the term, it basically means exactly what you described. A deep sense of unforgettable and cannot live without you. Something that solidifies even further when you’re away from him… like you’ve left a void in his life.
I suggest you give this thread a read:
It has some very useful Fallout recipes and discussion aimed at a Male target.
That should help you answer the question whether or not you should consider adding anything further to your mix.
Have fun, and be sure to post back!