My boyfriend is on a date with someone he hasn't known for long. Normally, he just keeps things casual, but this time it's different, and I’m happy for him because I know how exciting that can be. However, I’m feeling insecure because I’m dealing with a serious illness that has made it hard for me to function, work, or pursue my ambitions. They have a lot in common, which is great, but it also makes me feel like she’s an upgraded version of me—she's like me, but prettier, more creative, and they share more interests.

I’ve talked to him about my feelings, and he’s been really supportive and kind. Even so, I still feel jealous and scared because I’m insecure about myself. I haven’t dated anyone else in two years due to my cancer diagnosis and treatments, which have changed me and my body. Even though my boyfriend encourages me to date, I’m too afraid to try. Right now, I’m lying in bed while he’s with her, feeling inadequate and a bit silly for feeling this way.

Anyone has experienced something similar? And how did you navigate this? 1. In the moment when your partner is with the other partner and 2. how to approach feelings in a kind and loving way without making him feel bad

TL;DR: I'm feeling insecure and jealous because my boyfriend is on a date with someone new who seems like a better version of me. I've been struggling with self-esteem issues due to a serious illness, and while he's been supportive, I'm still scared and unsure of how to handle these feelings.