<p>Kudos for realizing this and having the conscience enough to ask for advice. If this is the type of girl you'd want to marry, then why would you jepordize what you have now with other "flings" so to speak that won't matter to you next week?</p>
<p>But at the same time, this seems to also be the case of a long distance relationship. If staying faithful to your girlfriend is like a chore for you now, then it isn't fair for either of you to "force" things. And you should just end this now.</p>
<p>On another note, I am a HUGE Ayn Rand fan. And although this excerpt isn't all that relevant to your situation, I just wanted to share it. (I mean no offense, method.)</p>
<p>...the man who despises himself tries to gain self-esteem from sexual adventures -- which can't be done, because sex is not the cause, but an effect and an expression of a man's sense of his own value... </p>
<p>Tell me what a man finds sexually attractive and I will tell you his entire philosophy of life. Show me the woman he sleeps with and I will tell you his valuation of himself... </p>
<p>The man who is proudly certain of his own value, will want the highest type of woman he can find, the woman he admires, the strongest, the hardest to conquer -- because only the possession of a heroine will give him the sense of achievement, not the possession of a brainless slut... </p>
<p>[The second-hander] cries with despair, because he can feel nothing for the women he respects, but finds himself in bondage to an irresistible passion for a slut from the gutter... He is the man who spends his time chasing women... What glory can there be in the conquer of a mindless body?