Should I break up with my girlfriend?

Hello everyone,

I am 21 years old and my gf is of 20. We both are in a relationship for the last 4 years. We plan to marry and spend whole life together. Now the problem is till now we haven't had sex. She is a pure girl and virgin till today too. We have engaged many times and attempted to have sex but all we can't  succeed, the reason is that she can't bear any pain.

Whenever I touch her near her vagina or try to insert one finger also she start screaming and I stop myself because I don't want to hurt her. We have almost engaged upto all limits only thing that is left between us is Intercourse..

Now the problem is, I am getting frustrated because I have waited a lot. I have supported her a lot. I gave her time but she is not responding. She always says she can't bear pain and so I can't have sex ever in life. Am a guy. I have my expectations, my feelings and I need to fulfill that also. I have talked her but she gets angry and says she can't  bear pain and so she can't have sex.

Due to all this reasons, I get bad thoughts to break up, to engage with escorts because I have waited a lot, and I don't want to cheat or hurt my love. Please help me in this.

Should I really break up? Or I should leave expectation of getting sex or should I find someone else to satisfy my needs?

I need your help to come up from all these bad thoughts and solve my problems.