Long story!! But, I really need serious answers.Please don't read unless you are giving good advice & opinions?

Well, me and a friend were friends for about 2 yrs. We were like family. We did everything together for awhile. Her son and my daughter were the same age and they did a lot together too. Her husband was friends with my husband. So we did this about 2 yrs. Then she got pregnant, and she changed. She told me I was getting on her nerves. She never told me why but, I figured it was because her husband and I had a good relationship too (like I said, I considered them family) and he came over on several occasions to work on different things around our house. My husband is not an "outside" person. He doesn't know how to do much house repairs so since he did, I asked him to do a lot of things. I don't know if she thought something was going on but, it wasn't. Anyway, she had her child in May, I've only seen her a couple of times since then. I, since then, had a baby. She never called or emailed me to ask how I was doing nor did she get me anything when I was pregnant or when my baby was born. (She didn't invite me to her baby shower but I gave her a gift for her baby) All of a sudden, yesterday, I started my new job at a daycare and she puts her son there and her son and my other daughter are in the same cl. Well, she saw my daughter and found out I was working there and she came all the way across the building looking for me. Then she talked to me for awhile, asked me to do lunch with her sometime & then said she had a gift for my baby and just hadn't got it to her. SO, then she left and when she came back yesterday afternoon to pick up her son. I was working in her son's room and she said, wow seeing you twice in one day and then she gave me a gift for my baby. I was in shock, I guess she went home, got the gift and brought it back to me. But, I'm so flabbergasted. I don't know what to feel. I mean, it's been almost a year without any conversations with her. And this is another weird thing, I've been doing my devotionals and yesterday it was talking about renewing relationships and then this happened. So I know it's God but, a part of me wants to rekindle the friendship, but a part of me is very leery. What do you think?