Is it love or lust? Maybe I’m just confused??

Emily

So, I’ve been with my boyfriend for almost 2 years coming up this May; we’ve known each other for 10 years as well. I love him, I do, but lately at my job this paramedic that keeps coming in with new patients for the past 2 months or so keeps flirting with me and I’m feeling some feelings. Not sure what to think here.. has anyone else gone through this before and have any advice??