I think there's a bit of context. Is this something where they dated for a month or so then broke it off? Or was it something more serious where they dated for over a year, then it ended? The first case, I would say it's okay, but in the second, absolutely not.

Dating your friends ex?! 🤔
Is it ever ok to date your friend's ex? The Christian dating pool is already so small, should we make it smaller by saying that some people are out of bounds?
How do we be respectful and sensitive with appropriate limits?
Never date the ex of a friend or family member, never
Its a no! unless they have found someone else and moved on
I don't think it's always a simple yes or no, as some have said you would need to talk to your friend first before (and if) going any further.
Nunca en mi vida. Que fuerte!
No.
It’s a complete no no
No no
In my opinion, it depends of some sort of things. But the most important is: before anything and any move, go and talk to the friend about the situation
Would you be ok with your friend dating your ex ?
The Christian dating world is difficult and awkward enough without adding this to the equation. Even if the friend gave their blessing, it’s going to affect the friendship and if you’re in the same church it’ll affect the dynamic there too. It just doesn’t sit right with me and if I were the friend, I’d be wondering if there had been feelings there all along.
More to do with guy code really.
@Anthony My boys are BIG on the bro code.
@Jude it's must.. Can't allow good friendships specially brothers in Christ that's more valuable.
Plus I believe it would get way to messy and uncomfortable.
@Anthony 100% - In all fairness, if you communicate and have an understanding with the boys it makes the friendships even better.
Uuuuuu.....not good . Almost sound like cheating :).. you know your friend you know his ex ...but you had time to observe ... If your friend does not mind and gives you his blessing yes ...but if you broke a friend's hearth ...he's not your friend anymore ..the world is full of exes..find another and keep them both as friends . Win win
I agree with @ haven, and with@ Simon depends on the situation and what type of friend if it’s a close or. Just an acquaintance!!
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@Raphaela awkward 😰
I think it's a complicated situation, I wouldn't feel comfortable
For me, my friends ex are a no-no. No matter how long they dated or how long ago it happened, it could bring up akward moments.
‘Tis a no from me. If for some reason I couldn’t shake the attraction, I would need to consult my friend in order to establish if they would be comfortable with me pursuing a relationship with their ex, before taking things further. This topic hits home as I recently ended a relationship with someone who saw no issue with dating an ex of a close friend without consulting them, knowing it would be devastating to her friend. I struggled with the fact she felt no remorse for her actions.
For me it really depends on the proximity of the friendship between you and said friend. Personally all my friends are pretty close to me so I would absolutely not date any of their exes, but can’t say it’s true if said friend was actually really an acquaintance who I spoke to from time to time. In such a situation I’d have a conversation with the person to gauge how they’d feel about it but ultimately if God gives the go ahead I’d probably go for it 😬
If the courtship was carried out in a biblical way then I’d say no problem. If you trust in Gods providence and sovereignty then it should not bother you.
For me it’s a big NO. I get it the Christian dating pool is so small, but I think between friends there are some things you just can’t do and dating an ex of someone you consider your friend is one of them
Depends on the situation!!! Sometimes yes and sometimes absolutely no! 😂