<human>: Give me the gist of the text in a nutshell

My GF keeps in contact with some of her ex's. At first I did not mind much but now it seems to bother me from time to time.  We have gotten into a fight about boundary issues before with one of her ex's (1) which almost broke us up.  She seemed very flirty in her texts and he responded by sending a picture of them from when they were together. 

 Aside from this there is another ex bf (2) who she talks to every now and again.  He once called her drunk at 2am looking for a place to crash.  I told her that was not ok and she said she will talk to him.  

  This past weekend she had planned to go to her parents house for the weekend.  On friday night I had made plans to go out with a group of my friends because she was driving out of town.  On Sunday night I found some texts on her phone to ex (2) asking if he was free on friday night for dinner as she was passing where he lived.  He responded that he had to work that night.  I saw that she had sent him a couple of pictures that weekend of her dog, which she has had for a long time ( guessing he was around when she first got the dog).  His responsese where give woofies a kiss for me and a big hug to your family.  Nothing I would say was alarming.  

  It seems like they did not meet up friday night, but she did not say anything about it to me or that she was talking to him at all.  He has called before and she would say she was with me, ill talk call you some other time.  I feel like she should tell me when she plans on meeting up with her ex's and ask if I am ok with it, the fact that she didnt tell me is concerning. 

 Does this behavior seem odd?  Am I right to believe that the pictures she sent of the dog and asking to meet up not appropriate.
<bot>: GF is still friends with her ex BF's and some questionable behavior has me concerned.  Should I bring this up?