I am fully pro-life (have no problems with the term, and I don't believe that women have a choice to end another person's life, which I believe begins at conception). But I don't believe it's helpful for me to judge somebody else's decision, as I don't walk in their shoes.
I accompanied a friend who had an abortion, about ten years ago. She never knew what my personal views were. I didn't think it would be in any way helpful to share them. All that would have happened is that she would have felt angry, judged, and gone through the experience alone instead of with a friend by her side. it wouldn't have changed her decision, which she had made for her own reasons that felt right to her. It wasn't my decision, or my choice, the only choice I could make was whether to support my friend or not, and I believe I made the right choice.
I also had a pregnancy where the baby was diagnosed with a condition incompatible with life. I didn't terminate, but miscarried naturally. I hope I would have carried to term, but I can't be sure what I would do if in that position again - I honestly don't think anybody knows until it happens. Afterwards I made contact with other women who have had the same prenatal diagnosis, and most people do terminate, as there is a 100% mortality rate with the condition, babies are unable to survive outside the womb and live for a few hours at most. So I do know a lot of people who have had terminations for medical reasons. My heart goes out to all of them, I know the heartbreak their decision has brought them and that they made their decision for the right reasons, and it is most definitely not for me to say that they were wrong to do so, I don't think anybody has the right to judge that and I would feel furious with anyone who tried.
So no, I wouldn't fall out with anyone over an abortion, I don't see what it would achieve, or who it would help.