[sarah_rsl]

One of the problem with changing partners fairly often, is that if you keep doing it within your social circle it gets really messy.

You're 18 years old and have and seemingly have no interest in having a stable relationship at this point. There's nothing wrong with that so long as you're up front with your partners.

What I would suggest though is that if someone clearly wants a stronger relationship than you're prepared to enter into then you need to end it. Often they'll say they're happy .. but they're not really they're hoping you'll see the light and go exclusive with them.

I think you need to finish with both women, and try and establish relationships with women that are looking for the same thing as you. You're at college you have other stuff to be worrying about other than some drama that'll probably never result in anything.