<human>: Can you summarize the given text in a few sentences?

Here's a little backstory - I'm currently in College with a part time job working on campus (Don't want to say too much info sorry) and I'm insanely busy, I don't have too much of a social life because I only have an hour or less  of free time a day and I usually spend it skyping with my Girlfriend who lives across the country.

My girlfriends currently in school but she's not nearly as busy. (only taking a few classes a week and doesn't work, her family is really well off) so she has a lot of free time a day while I'm busy at class or working. 

Now to the part that's bothering me, lately when she's been getting home from class she's been watching shows/movies/ and talking a lot with a guy that she's been friends with for about a year now(yesterday they watched 2 movies and 3 episodes of a netflix series). This makes me constantly have bad thoughts in the back of my head that she's spending so much time with him while I'm working. While they're together she takes a long time to respond to texts and doesn't really text me very often, whereas if she's not talking with this guy she texts me constantly about how much she misses/loves me.

My last and only relationship was 1 year long, (17-18) and it ended with my ex cheating on me. Even though to a lot of people 1 year isn't that long and I was "young" it hurt me for a long time. I still have some trust issues from this even though I know it doesn't help to not trust your partner, it's hard for me to control. 

I'm just wondering what I should do in this situation, I talked to her a little about it before when this was happening a few months ago, but she said it wasn't fair and she's allowed to have friends which I agree to but it still bothers me, am I just in the wrong here?
<bot>: Girlfriends talking/spending a lot of time watching shows with a friend while I'm busy at class, this is making me feel bad because of insecurities, am I in the wrong here?