<human>: Can you provide a brief overview of the text?

This is probably a really petty problem compared to the other things that show up on this subreddit, but I didn't know where else to ask.

I have been with my boyfriend [21m] for two and a half years, and it has been truly wonderful. He is a lovely person, and we see ourselves possibly getting engaged in the near future.

However, I can't help but feel like I always get irrationally jealous over little things regarding his relationships with other women, both current and past. I am his second LTR, and he is my first. Maybe a year or so ago I was a bit bothered by some old profile pictures of him and his ex on Facebook, and politely asked him if he could take them down, which he happily did. Ever since then I've found that any sort or interactions he has with other women, even those that are my friends as well, sparks a tiny little flame of jealousy within me. It's very small, but almost always there. I even found myself bothered by an interaction he had on Facebook with one of his best friend's GF. It was utterly harmless, and I know they're friends, but I still couldn't help but feel a little upset.

I guess my question is this: is this normal? Am I making myself more mentally clingy than I should be? And is there any way I can make myself not feel like this almost all the time?
<bot>: wonderful long-term relationship with bf, can't help but feel a little jealous of every interaction he has with other women my age, any way this can be remedied?