Any way to get a girl emotionally attached?

[lemonade23]

Okay so its a typical situation. Girl has been in relationship with boyfriend for 3 years. They have had their ups and downs. They are in a wobbly period and the girl starts getting with me while drunk at uni (bf at home, i dont know about him). She supposedly "falls in love" with me during this time and hastily dumps her boyfriend. We build some kind of relationship over 3 months but she never tells me why she doesnt want a full relationship with me, she tells me shes over her ex though and maybe wants a full one next year. Term ends and she sees her ex once, then cries on phone to me saying she still loves or has feelings for him. All of the time I have been readily available to her. I support her in whatever her decision may be. I even travel to visit her and we have sex and everything but she still chooses to give her ex another go. I have already realised that I am the guy that she wanted excitement with, something her boyfriend couldnt give her. However she is still emotionally attached to him and even though we may have developed some aswell during our time, I cant compete with 3 years of it. I have asked to cut all contact but I feel like we will probably get together again next term. So is there any way to get her emotionally attached to me for something long term? And just not the temporary "excitement". Thanks!

[sdraw108]

Honestly, I've never understood why people want to date people like this. If she'll do this to her boyfriend, she'll do it to you later down the line. Are you happy to accept that?

[lemonade23]

the way I see it, she'll always come back to me for something her bf cant give her, but will always end up back with him in the long run. Hopefully I'd want to develop something in the long run too but if its making me happy being with her, i dont mind sticking with her till the end of the year then being upset maybe. Lets face it, most relationships are just psychological games anyway