Need some advice

[Joe5.0]

Well long story short my gf of about 9 months broke up with me about 2 months ago. I loved her, had even bought a ring and planned on proposing this winter. She really is a great girl, but has some deepset trust & faith in other people issues.

I had just started dating again, and even met a couple cool girls. Nothing compared to my ex, but still something to get going again with.

Well my ex texted me last night, saying how she now realizes that I wasnt lying, and that she was sorry, basically. I called her, and after talking for a couple hours she admitted that she missed me and down deep wanted to get back with me.

Here's the thing, she started dating like a week or two after we broke up, and I hadnt. It does bug me that she right off the bat started going out again, but I still want to be with her regardless of that.

We had an AWESOME relationship, and she basically was the girl I wanted to spend the rest of my life with.

Am I setting myself up to get beat down again? I still think about her everyday, and still love her alot, but can things ever work out after you've started seeing other people? I can be jealous, but right now I dont care that she dated some other guy, I just want to be with her.

Does this shit tend to never work out? Its alot more complicated than just typical bf/gf too, we work together and I have another ex of a couple yrs ago that works with me too.

I dunno, suggestions??