I still can't see how some of you guys falling for these chicks on pof tinder, okc, etc. I get it though, few stories of success and some dudes finding wifey on there. But yo... I think it's been stated a lot of times in here that the main attraction of women to these apps is the quickness they can move on if they desire. No same social circle or family friends or anything. Always keep that in mind.
Anyway though bro, nothing wrong with being a good man, all that rap lyrics you quoted don't apply to all women.
And on the upside of things that is a fairly small heartache for the lesson on the world of heartbreak. Some guys the devastation is real after 3 years with a girl and she just leaves. And then they reach your actualization "can't save em"
My current girl was met on OKC, at the rate we are going she will be wifey. My intentions on OKC was find something for the long haul and I made that clear on my profile, in my search and made sure those I met were like minded. There are chicks on these sites looking for "free chipotle" and some of my girls GFs are those chicks.
I don't think dudes are taking the time to get to know these chicks. You have to understand where these girls heads are at before you get attached. Ask questions about their past. I will ask a chick when was the last time they had sex, a bf and if they have ever been heart broken. Only then will you be able to make and informed decision on how far you want to go.