Asura.Floppyseconds said:
»Is being a nice guy and a loving ex a mistake?
Well... kinda. Are you being nice just to be nice, or is there a hidden motive, like wanting to get back together with this individual? Like having her betray the trust of her current boyfriend - is that the nicest thing you could be doing?
What do they say about love - if you love them, do what's best for them, including letting them go?
Also, the other mistake I've made that you're currently doing is throwing money in the hopes that you can somehow base a meaningful relationship off of it. I've made that mistake twice now, and both times were met with full and abject failure.