Search Results: rebound relationship breakup

My friend and I met 3.5 years ago. He was in an open relationship. I was just coming out of a bad breakup. We were our own people with no strings attached. His girlfriend dumped him, and he was heartbroken. I was there for him, but I avoided getting attached, because we were just friends, he was moving out of state in a year or so, and I was not going to be a rebound. We were having sex as friends, we both got tested fairly often, and we never fought about anything. Our dynamic was not all sex. He moved away, I thought I'd never hear from him again. Instead he flew me out to see him, and we maintained our friendship. I wondered which way this was going. We talked a few times, he said he had strong, loving feelings for me but as a close friend for life that he would always be there for. I was happy with that direction. Last year, I decided that I was looking for more. He was not an option, so I saw other people. He seemed to not be happy about that and we pulled away a bit. When we saw each other we didn't have sex, but we still enjoyed each others company. Last month I texted to say hi. Out of the blue he started talking to me in a way he never had before, and then he asked me to be his girlfriend! Needless to say, I was shocked! I didn't think he felt that way about me, and I had moved past that as ever being an option. I told him that this was something we should discuss in person. He agreed, and I booked a flight.

Monday I asked him if he would get an STD test.

He hasn't been tested since January, and he's had 4 partners since then. Two days later he completely blew up on me over it. He started ranting that he's never once asked me to get tested, and he cannot accept my lack of trust and paranoia in requesting that he get tested every time we are seeing each other. I should just trust that he can pick good people. I told him that STDs don't care about trust. It ended in him saying he never loved me in any way, I was just a good friend. What just happened?

2 weeks after the breakup, he starts dating a friend who's had a crush on him. But, he still is incredibly happy when he sees me and tries to bump into me by being with our mutual friends, looks at my way a lot + he's incredibly friendly towards me.

I asked him tho: "he said, I'm with someone new and I'm happy if you put it that way"

A. Does that mean he lied and he's moved on and is genuinely happy.
Or
B. She's a rebound.