It's Just some girlish chat with her friend, are you jealous of his dick? I don't get it.

My gf slept with 10 partners before we met, some had bigger dicks, some had smaller, some might have been better in bed or whatever who gives a shit. She's with you now, make your best to be the best, it's all up to you, not the ex bf's that she had.

I can only suggest that for a healthy relationship, you should be more open with each other. Previous partners shouldn't be such a big fucking secret or a surprise.

If your main problem is your dick size then you should go to the sex subreddit for some advice how to make the best of what you've got. The majority of the girls wouldn't want to be in a relationship with such a big penis. They want to try it once but that's it, because for daily sex it simply hurts .