Most Helpful Guy
Well... He has a girlfriend, and you know girls are the same as guys... We get jealous if you are with someone else also.
My personal feelings based on your story is that yes, he may have feelings for you... And it may feel good for him that you have feelings for him... However, he still has a girlfriend in which he has to spend his time with... & I think, though he wants to keep you as a friend... Somewhere in the back of his mind he thinks perhaps he can hold on to you and if things don't work out with his girlfriend... "Perhaps" you and he can have something else.
Kissing cuddling spending time with you or haveing feelings for you in a romantic way... Would be technically cheating.
Personally, what I would do is let him go if you can't keep him as just a friend or acquaintance.
When the week is up, don't call him and don't text him... Let him come to you, if he don't, just let him go.
Also, you need to consider your wants and feelings, if you want to have a romantic relationship with him, and he's not ready for that due to having a girlfriend already... You need to respect that.
Perhaps in time... Later down the road under different circumstances you both may reunite and develop your relationship further... But until then I would suggest getting out and meeting other guys and socializing.