Remember, there is also the inherent difference between I and E. As Es we act, then we think, and then we act more. We gain energy from our interactions with people. Whereas Is, even if they enjoy social company, they are drained from these interactions.
When you say attention whoring, I immediately think of my own character flaws (that I discussed on another thread). And I worry that less-outgoing types may see my extensive talking as trying to be the center of attention. For me at least, I don't do it to be the center of attention....and I tend to actually be more talkative one-on-one, and therefore I can be at risk for monopolizing the conversation. I do it because I genuinely am excited and enjoy telling that person what I think because I want to either a) know what their opinion is and engage in intellectual conversation/debate, or b) tell a story that I feel can build a bridge between us....often an observation or anecdote that can give advice or empathy to that person.
Again I use examples to try and "paint a picture" because I wanted to give you some insight into this --- I'm a very visual person, and I think that's reflected in how I talk.
Good luck with the job searching process....I'm right there with you girl!! I've been *out there* for over a year - not fun!! It is very stressful, so you need to focus on yourself and doing what's best for you. It seems like you care very much about this guy, but that he is draining you emotionally - and that's not something you need to be dealing with right now with everything else going on. Just take care of yourself. You can't carry the world on your shoulders.