So I just kind of learned that I may be obsessed over a girlfriend I have. I thought that I felt love for her, what is the difference? and how can I turn things around so that she doesn't feel like I'm obsessed with her... she doesn't seem to be in the mood for sex/foreplay is this normal if she feels that Im obsessed over her?

Does she think youare obsessed with sex with her or does she feel that because you give her no room to be herself that you are obsessed? May need to clarify with her what she means. Remember men and women do not always mean the same thing when they talk.

Sex isn't that important to me. She's going home to be with family and take care of some stuff and I've been showing her how much I love her in as many ways as I can so she knows I'm here for her...
We were really close and would exchange "i love yous" but things kinda changed, she's leaving on Tuesday.

Then perhaps she is trying to act tough so her heart does not break so much. Have seen Ladies do this. Maybe she is thinking a LDR would not work. Maybe she is worried you might cheat. Maybe she might cheat. Still say talking to her will be the most beneficial.

We've already tried the LDR and all was fine. We met on Xmas and she left early Jan. She came back in March and now leaving again. I can be true to her, I've tried talking to her, she says she wants to think about if she really does love me. Is cutting off any sexual activity normal for this scenario? it's not that important again, but it wouldn't hurt trying cause idk when I'd see her again.

Cutting off the sex thing happens for too many reasons and they lie usually with the Lady. Hate to give advice, certainly no expert on Female thinking, but it seems like there is something going on. Maybe she just like she says, needs time to evaluate is this relationship what she really wants. If that's the case she needs the time she needs, no sense trying to rush. Try not to jump to any conclusions. I have spent many nights worrying what could be it, only to find I was as far off base as Mars and Pluto! Hopefully soon she will confide what is bothering her.

Love is two people, obsession is one person.

so true!!!

She hasn't told me what I've done wrong, it's the thing thats bugging me the most if I get dumped I'd like a reason at least. She mentioned she doesn't like my ways of thinking I don't think that is enough to end things though...
Plus I told her I was at work one day when I was at a park really (alone) she found out cause I took pics from my phone. A white lie I don't think it's enough to end things is it? Maybe space is what she needs.