Also, if I truly have strong feelings for my partner and am truly in love it wouldn't matter if fifty exes came sniffing around or sent messages. I would ignore and delete the messages or send one back saying "Not interested". Yes, that has happened (not fifty exes lol, just one). I told him I wasn't interested. I didn't meet with him and then tell my current boyfriend that I still had feelings for my ex and that my feelings for him weren't as strong as my feelings for my ex. I said no thanks and deleted the message. (Oh wait, I showed the message to my current boyfriend because I was being transparent. And I sent the "not interested" message in front of my boyfriend and deleted my ex's message in front of him.)
Someone truly in love can't be swayed by an ex. Or anyone, for that matter.
You shouldn't have to convince someone to be in a relationship with you. They are either 100% in or they're out.