You don't need to fight over a Muslimah. Friends have turned foes just because of a sister. You don't need to have sleepless night over that sister, your future spouse has been decreed long before you were created, she won't be given to another man. Know that, even if 500 suitors precede you to her, she would still reject all of them, until it gets to your turn. Don't smell what you can't eat, the cost of food stuff and pampers in the market is not funny.
Stop tying them down with prolonged relationships, when you are not even prepared to get married. You only proposed to her because you don't want another suitor to beat you to her, yet the shortage will still be yours at last. Your prolonged Khitbah with her has cost you; lots of airtime, lots of Hijab gifts, lots of sallah clothes, you even bought her an expensive phone and you paid some of her school fees... at long last she might still leave you for another man for a very flimsy reason, while you are weeping about the heartbreak, she might be enjoying her honeymoon under the roof of a sharp man who was ready for marriage.
Marriage is no joke, it's a commitment. If you are not ready for it, don't stress yourself. If a sister should even propose, reject it, she doesn't know your pocket size before proposing, but you know your own pocket. You aren't more merciful to people than the Rasul, yet He turned down proposals too. When Umar offered his daughter to Uthman, he replied: ﺳَﺄَﻧْﻈُﺮُ ﻓِﻲ ﺃَﻣْﺮِﻱ
(I will think about it).
After some days, he humbly declined Umar's offer by saying: ﻣَﺎ ﺃُﺭِﻳﺪُ ﺃَﻥْ ﺃَﺗَﺰَﻭَّﺝَ ﻳَﻮْﻣِﻲ ﻫَﺬَﺍ
(I don't want to get married for now).
He didn't 'please' his bosom friend Umar by displeasing his own self, Uthman was rich but he didn't accept the offer out of pity or mercy.
You see that sister who makes MashaAllah posts on Facebook, as enticing as her Facebook name is, and as cute as the cat pictures on her DP looks, don't go to her inbox and don't seek for her what'sapp number. If she is yours, Allah will block every other suitor from her until you are ready, even if you will only be ready in 10 years time. So live a simple and chaste life, and don't give yourself heart attack over any Facebook sister. The Arabs do say:
ﻣﺎ ﻛﺎﻥ ﻣﻘﺪﺭﺍ ﻟﻚ ﺳﻴﺄﺗﻴﻚ ﻭﻟﻮ ﻛﺎﻥ ﺑﻴﻦ ﺟﺒﻠﻴﻦ
ﻭﻣﺎ ﻟﻢ ﻳﻜﻦ ﻣﻘﺪﺭﺍ ﻟﻚ ﻟﻦ ﻳﺄﺗﻴﻚ ﻭﻟﻮ ﻛﺎﻥ ﺑﻴﻦ ﺷﻔﺘﻴﻚ
(What is destined for you will reach you even if it's beneath two mountains, and what is not destined for you will never belong to you, even if it's already between your two lips)
May Allah grant us patience and Tawwakul, ameen.
Awesome