I have loves two people outside my relegion, i am a shiite, i once loved a sunni(not so much a relegion in this case were taking it more like a sect issue), and i once loved a christian...I did not face any obstacles, i did not have any problems, i loved her for her soul and her mind and everything one should love another person for, and did not care for her religion and other things...The end result was me stopping to love her when i got bored
...Personally, i think that things are getting alot worse after the sharp ectarian divison, because people are judging other people based on their sect, not their personality and who they actually are...In my opinion, the solution for such a problem would be to face it, face the community as a whole, and try to communicate with other people of a different sect from yours, and see for yourself that they are also humans and normal, and we shouldnt judge them based on their religion and sect, but as a human, and then we will see that we will face absolutely no problems or obstacles at all...