I have been dating this girl for one month now and it has been perfect. We always have fun together, she seems super into me and often tells me how attracted she is to me. The sex is great and our chemistry is very strong. 

With that said, I am concerned I am being used as a rebound, or as a temporary means to comfort her. She ended her engagement a few months ago with her ex of 4 years (they were engaged for 1 year).

Here's the first red flag I noticed: For the first 3 weeks of dating her, she never told me she was engaged to this guy, she only referred to him as her "ex boyfriend". I didn't find out they were engaged until I looked at her Facebook page and where she still has dozens of photos of them together and all her friends congratulating her on the engagement. I found this odd because she had talked about him alot but intentionally hid the fact that they were engaged, only ever referring to him as her "ex boyfriend". I asked her why she never told me and her response was that "she didn't want to scare me away". Her ex bought a dog with her, so they take turns sharing the dog for a week. So they are still in touch with each other and she still talks to his parents about logistical things as well. 

I have no problem with her talking to her ex fiance about logistics, because we aren't in an exclusive relationship. However, this girl keeps telling me how much she likes me, but when I asked her what she thought "about us" she sounded confused and responded "well... I like hanging out with you" which was strange considering how much she professes her feelings for me. I like this girl alot. My concern is that I'm a rebound and she will ditch me when she gets bored or finds someone better. Should I be concerned about anything here or am I overthinking?
user
Been dating this girl for 1 month, she is just broke off an engagement to her ex which she didn't tell me about for the first 3 weeks. She says she likes me alot, yet won't commit to anything.
assistant
I have been dating this girl for one month now and it has been perfect. We always have fun together, she seems super into me and often tells me how attracted she is to me. The sex is great and our chemistry is very strong. 

With that said, I am concerned I am being used as a rebound, or as a temporary means to comfort her. She ended her engagement a few months ago with her ex of 4 years (they were engaged for 1 year).

Here's the first red flag I noticed: For the first 3 weeks of dating her, she never told me she was engaged to this guy, she only referred to him as her "ex boyfriend". I didn't find out they were engaged until I looked at her Facebook page and where she still has dozens of photos of them together and all her friends congratulating her on the engagement. I found this odd because she had talked about him alot but intentionally hid the fact that they were engaged, only ever referring to him as her "ex boyfriend". I asked her why she never told me and her response was that "she didn't want to scare me away". Her ex bought a dog with her, so they take turns sharing the dog for a week. So they are still in touch with each other and she still talks to his parents about logistical things as well. 

I have no problem with her talking to her ex fiance about logistics, because we aren't in an exclusive relationship. However, this girl keeps telling me how much she likes me, but when I asked her what she thought "about us" she sounded confused and responded "well... I like hanging out with you" which was strange considering how much she professes her feelings for me. I like this girl alot. My concern is that I'm a rebound and she will ditch me when she gets bored or finds someone better. Should I be concerned about anything here or am I overthinking?
user
Girl I'm dating [24F] is still in touch with her ex [24M] and he recently bought a dog for her to share. I [26M] am concerned I'm a rebound because she doesn't seem to be using me as a
assistant