Need Ladies Opinion, am I making a huge mistake?

Okay before I get called a jerk for this I just want to say I'm only thinking about asking out one of my ex girlfriends best friends.The only thing is I don't know how to handle the situation. I'm in my late 20's. It's been 3 months since my breakup and my ex dumped me. She is already seeing someone and we were only together for 3 months. My ex wanted to remain close friends with me, but thats kinda weird so about a week ago I cut the ties with her and stopped really talking that much with her. So any advice on how to handle this?I've hung out with her friend once with someone else, we went out for the night. All the other times I was with my ex girlfriend. I don't want to just ask the girl to hang out in a sleezy way. Should I tell my ex what I'm about to do? I don't think she would care, but does that make it look better that I told her that I wanted to ask her friend out? I have no idea, need advice from the ladies!

tough, i heard its always good to talk to her bout it but i see that you cut the conversation line thingi. So this is tough, i would say umm, dam she has a man now? well uh i know im not a ladie lol but i guess from a guys point of view, i would want my ex to tell me if she was planning on going out with my bff, but i would hate my bestfriend, and my ex, for a VERY LONG TIME lol.
it will cause conflict, but u will have fun,
its totaly bout what you want.

if you have made a clean break with your ex, it should not concern her if you ask out her friend
i, personally, have an unspoken code with my girlfriends
it goes like this: if he wasn't good enough for you, why should I bother dating him?
good luck...you shouldn't let MY unspoken code interfere with YOUR decisions, though
just tell her that you find her interesting and want to get to know her better, would she go out with you
let her friend tell her that she is dating you...don't tell her yourself

your ex girlfriend was only with you 3 months .....................you might let her know you like her friend ......either way it's up to you and this other girl it might be different if you previous relationship had been 3 years ............but as she is seeing someone new did she ask you .....I doubt it ..................to be honest your taking too many other peoples feelings into account ..............go for it you may find some ladies here will call you a jerk and be disrepectful but as your EX is in a new relationship why can't you

i dont think you should date one of your ex's best friends cus i know there on the market does not mean that there not going to be talking about what you do in bed, or what you two are doing when you two are dating it's not going to turn out right if you date there friends because sum times there best friends just date you to break your heart because they want you to feel the same way your ex feels...

well maybe its better if u tell her she might not care but it is her friend that might get her mad so tell her and just go out with her only because u dont know what to do or ur like just want to get ur ex mad

i just had to read the first sentece. ur ex will kill u if u date her. that is being a stupid moran who is hoplessley desprate.

hmm the whole dating the bff thing is such a no no. However you really didnt date your ex that long at all. I t hink if you really like her bff then you should ask her out. Maybe tell your ex whats up too. You dont want to ruin there friendship.

I would much rather have my bff and ex bf tell me they want to date then go and do it behind my back. I am a sensible person, I will tell them to date if they like each other and not hold a grudge. Do it behind my back however and then I will be pissed and you are no longer my friend.

I would give your ex a heads up.