Dating running out things talk
As for believing your life is too bland to talk about it, I think it's all about how you look at it. On the link below you'll find a training series focused on how to feel at ease socially, even if you tend to overthink today. Sometimes one partner won't be as talkative as the other, or great at sharing the little details of their lives.
For example, in the broadest sense your job may be dull. It also covers how to avoid awkward silence, attract amazing friends, and why you don't need an "interesting life" to make interesting conversation. Their partner may get a little frustrated with them and nag them to open up, or start peppering them with questions to try to get them to share more information.
Maybe the same material would be tedious if it was coming from a stranger, but it's coming from you, their good buddy/significant other, so they find it interesting.
If someone is close to you they want to know what's going on in your life, and how you're feeling about it.
You may need to apply one of the points above (i.e., you're worried that they'll reject your 'boring' or 'weird' thoughts, or you don't know how to identify all the shareable details in your life).
Over time in each of your relationships you'll tend to figure out which topics are best to avoid going on about too much. If you're still having trouble finding ways to talk about your life, one approach that might help is to imagine you have to write a story about it.
They don't want to feel like they're superficially spending time with a distant, impenetrable figure.
If you have trouble opening up to your partner, it's something you can practice.
Actually, the more you speak to someone the more specific and detailed you can get.
When you haven't spoken to someone in a while, even if they're a good friend, your conversation tends to be very general at first, as you try to summarize huge amounts of information: "So what have you been up to? I got promoted to Regional Manager and Natasha is pregnant with our second child." When you talk to someone often they're already familiar with the nitty gritty details of your life, so you can update them on small future developments as they come up.