<human>: Give me the gist of the text in a nutshell

Firstly, I just want to say that I really love my boyfriend. We're amazing together, he's a sexy, kind, lovable guy, who I have the most fun with.

But... we've been together for 2 years now, and the sex is still not doing it for me. 

I'm a bit more experienced than him.
In the beginning the clumsyness was fun, a challenge. I've shown him what I like, and introduced him to different ideas, and he's eager to learn and try new things. 

But... I rarely orgasm. 
Giving instructions, and being dominant is a massive turn-off for me. But sensuality isn't intuitive for him and when we get jiggy it still just feels like awkward teenage fumbling.

Currently we only get to see each other for a few days every few weeks due to university stuff, and I want there to be mad passion and desire when we meet. Being apart leaves us both really horny! And I need the stress relief. But when it comes down to it, he doesn't put much effort in, and if I take over he comes really quickly. So I can't win.  I really try to not be too disappointed, but I'm getting to the point where I don't even want to have sex now, because I know that I'll end up more frustrated and get grouchy. 

Our communication is great, we can talk about anything.
<bot>: Our relationship [F26&M27] is gorgeous but after 2 years we still have a disappointing sex life. What can I do to be more patient and relax? And how can I help him be more assertive in bed?