<human>: Can you succinctly summarize the text in 1-3 sentences?

Hi Reddit.

I love my boyfriend. I love living with him, spending time with him and just being with him. 

But this is the thing: I would love it if we could try having an open relationship. I have never been with anyone else than him and I really want to have more experience. 

I of course don't know how he would react but I do think I know him well enough to know that he would be sad, hurt and not up for it. He's kind of insecure and never wants to talk about fantasies involving other people or even just childhood crushes. 

Why do I want this? Well like I said, I want the experience, but that's not the only reason. In the bedroom he seems to get everything he wants and is obviously very satisfied while I am not. We've been together for a long time so we've tried pretty much everything, and yes we've talked about this multiple times and tried everything we could think of.

I get hit on every now and then and while I of course always turn the guys down I sometimes regret that I have to because I can feel the chemistry and want to have a one night stand with them or just kiss them passionately or something.

How should I go about asking my boyfriend about something like this? Should I just not even try?
<bot>: My boyfriend is insecure and doesn't even like talking about having crushes, how should I go about asking him about having an open relationship? Should I just not even try?