<human>: Condense the text into a few key points

My ex and I were together for a total of 7 months. On New Year's Eve this year she broke up with me because we are in different places in our lives. (She is significantly older than me and doesn't want to wait for me to finish my masters before settling down.) She said some really hurtful things and I don't think getting back together is what's good for me.

I work as a barista at a local coffee shop and since 2 weeks after the break up she has been coming in at least once a week. Yes, she was a regular before, but she only comes in on days I work now despite schedule changes. 

It upset me a lot the first time, and now it's just frustrating. It is mostly frustrating because I have been trying to get some of my things back, but she is always too busy or too sick to do it. Even after I text her and she's too sick I'll see her in the shop the next day.

My question is am I just being too sensitive about this? I have only ever been in long distance relationships and this is the first time I have dated someone from my area. Yes, seeing her was inevitable, but I haven't gone into her work at all out of respect. Has anyone else had an ex that has done this and how do you deal with it?
<bot>: Ex broke up with me on New Years, too "sick" to exchange things, but keeps coming into my work.