AITK for refusing to accompany my friend who's going to see her boyfriend?

In the last year of college,right now. Didn't take the initial years seriously. Went out with friends a lot, whenever anyone makes a plan, I'm the one who's always ready to go. But with time i started realising that was a very stupid thing to do. I have a classmate who lives close to me and she has a boyfriend in an engineering college in another city,400 kms away.

Now,we all are in our beginning 20s, so when this friend of mine and her boyfriend meet only in the railway station,it's a bit weird to me. And that's only when he's coming back home via train or going back to his hostel via train. The boyfriend says it's difficult for him to take leaves and come meet her in the middle of the year and my friend's parents are strict too ,so maybe it makes sense .

Me and this classmate used to be good friends but with time i started realising, She's more close to another friend of ours and it went on to a point where she started ignoring me and that made me feel left out and I was upset. When i confronted her about it,she said it wasn't intentional. I thought it was childish of me to ask her too so I started being friends with everyone in the class and not just with one particular person.

Whenever she goes to meet her boyfriend in the railway station,she would ask me to come with her as she says she doesn't know how to travel via trains to the next city and come back and as a friend someone accompanying her would be useful. And i have done the same many times.

But one day,when I was in another city,in the train,my dad came to meet me in the hostel and since I wasn't there and couldn't even pick up my phone either,i got into trouble with my dad and our warden. My dad was very mad at him for not telling him and going to another city.

2-3 months later,she asked me to accompany her again and also apologized about everything and I went with her again.

Now back to the present,we aren't very good friends anymore. We only talk when we have classes or have plans. But she makes me come even when I have something to do and cannot make it to do any of the friends gatherings.

Now,she has asked me again to come with her this Sunday to another city to meet her boyfriend. That city is 200 kms away from here and we have to travel via train again.

The thing is I feel irritated that she only comes to me and pleads when she needs anything for me. But after this all is over,she will go back to being friends with her friend and treat me like any other friend in the class.

Also,if I get into trouble with my dad again,it won't be good for me and of course she's not going to do anything.

Besides,i don't think travelling to another city via train is such a big deal nowadays. She can travel alone.

So,AITK for refusing while she's blowing my phone up constantly asking me to come with her?