Is she just a good friend or trying for something more?

I recently got out of a long-term relationship. I was bummed and depressed about the breakup when an old friend (one I haven't really talked to in almost 4 years) "came to my rescue" talking about how I deserved better than her, and so forth (her words, not mine). I initially didn't think much of it, thanked her for her concern and said that "we used to be such good friends. We should try harder to stay in touch, and hang out. We should get together sometime to catch up." A few days later she invited me out for dinner. I already had dinner plans and politely declined, but suggested we should get some after dinner coffee. She said she had some pending plans, but would call me if they fell through to go get some coffee.

It might be important to mention that I had asked out this girl twice in the past. Once in high school, and once in college (roughly 8 and 6 years ago). Both times she declined stating "I can't date someone I can't imagine myself marrying."

Well her plans did fall through, and we got together for coffee. I assumed we were getting together as two old friends to catch up and talk about the good times of years past. I thought I was picking up on a vibe, and that this coffee was more date like. We actually ended up going back to my place to play some ping pong and watch a movie. I have other female friends with which I'm so close that although there might be some flirting, and touching and so forth we know that we're just friends, but I never had that relationship with this friend in the past. A few days later, I needed to get my tires replaced, and decided to call her "to waste a few hours while they replace the tires on my car". Still being a little confused about our "coffee date" I told her "When we got together for coffee, it seemed awfully date-like. Was that just two friends getting together catching up, or was it supposed to be something more?" Her reply was "I don't see anything wrong if either of us were to want to take some physical comfort in the other." Unfortunatly that didn't clear much of anything up in my mind. Wasting two hours for a tire appointment ended up being nine hours of friendly relaxed fun and we ended up cuddling on the couch (per my suggestion). Cuddling on the couch like that is something I've done with some of my other really close female friends, and of course girlfriends, so the simple fact of cuddling on the couch isn't conclusive to me.

Yesterday, I asked her what should I do for the evening. I was trying to decide between making plans, watching TV, or making plans to watch TV. She suggested that the two of us go out for some dinner (it was subway... not a big deal), then come back to my place to watch TV and a movie. During the movie she cuddled up in my arms again (her move this time). But later when we watched TV she sat in a different chair entirely (I was sitting on the couch). Those are the only times we've been physically close.

I'm basically wondering if I'm overly open to affection and flirting because of my recent break-up and this girl just wants to remain friends. Or are the signals I think I'm getting really invitations to see if our relationship could be something more. I've never been this concerned about being rejected in the past. I've always kinda had a crush on her. I don't want to lose her as a friend, but don't want to miss an opportunity to see if our friendship could be something more.