You must unlearn that which you have learned. There is no such thing as a 'Player' only men with or without options. You're on the right path doing boot camp (and keep reading the DJ Bible), but much of what you will learn will go against the grain of what you have ben taught and have internalized for more than half your life with regards to women and their behaviors. Keep an open mind.
The path of least resistance would be to give up or 'settle' for what you can get given your present state of dejection. Dont fall into this trap and waste more precious time with someone less rewarding than you are willing to put effort into. I say this because you stated that you were "dumped by someone you weren't really that into." Why are you wasting time like this? Time a precious resource (particularly for yourself), why waste it on less than optimal propositions? This is time you could've better spent on pursuing better and more prospects.
As I stated before, there are no 'Players' only men with options. What are your options? From the words you used in your post I can see that you subscribe to a goal oriented approach towards women - this is the single most self-limiting ideology you can have. A marriage/LTR should never be an achievement for a man, rather it is the result, the byproduct of his independence and personal successes.
A woman should only ever be a compliment to a man's life - never the focus of it.
Unlearn your goal orientation in this regard, success isn't defined in marriage or an LTR. Single at 44 (soon 45) you are the envy of man-dom, because you have what those of us already married and settled down do not - time. Time to use as you please, unburdened by the accountability, liability and resonpsibility that being yoked to another person and family cost. That's not to disparage family life, but it is to make clear that men are defined by how they handle their own solitude. How well we do on our own defines our confidence and independence - two of the most attractive qualities women seek in men.
I constantly get this "I need a girlfriend now or I'll be a lonely only old man in my retirement" argument from teenage boys who already have this 'goal' mentality engrained into their personalities. So I'll tell you what I tell them, would you rather risk loneliness and pursue what is best for you or spend a lifetime with a partner you settled for enduring the responsibilities that came along with doing so?
The good news is that I know divorced and nevermarried men of 50 that are extremely successful both financially and personally who pull tail more in their 40's and 50's than they did in their 20's or 30's because they made this connection. They matured and are benefiting from this wisdom and understanding of how to employ it. The bad news is I also know several 60+ year old men who are still AFCs, both divorced and married, who will never break this internalization and continue in making women a criteria for personal success, affirmation and fulfilment. Nothing is to be more pitied than the financially successful 65 y.o. man who still chases after women, seeking their approval, putting them on the pedestal they've belonged on for decades, who've made women the PRIZE and have him tell you, "Women, eh? I guess us men will never understand 'em."
Dont let this be your fate.